I have a few different circles, of generally increasing size and decreasing intimacy.
My regular Wednesday night 5E group is all friends and/or partners who live nearby, and whom I've known for around four years. All but one of them was a player in my own Wednesday night 5E game which went on hiatus last Summer, and the current game is Frostmaiden, the first campaign being run by one of my own players. Great to see him spreading his wings. 6 of us total in that group.
During the pandemic I've also been running a quasi-open table dungeoncrawling 5TD / B/X game. After a while it largely settled into two small groups of three players, though there's been a bit of turnover. All but one of those players are also local friends, one of them my brother. Another is a good friend of twenty years. The one exception was a guy I met online last year through an old school D&D group Finder, whose 1974 OD&D game I played in for a while, before inviting him to play in mine. All told about 8 players in that, 3 of us overlapping with the Wednesday night crew.
I'm also in a biweekly OD&D game run by a guy I met through the same online connection. I joined his group after the DM for the other OD&D game had to stop running. The players in this group (another open table, with about 10-12 players in total, of whom 6-8 of us tend to show for any given session) are distributed all over the country, and I've never met any of them IRL. This group has no overlap with the others except for me. Call that circle about 12 people.
I'm also on a Discord server for old school pick up games, but a couple of the DMs there established regular ongoing open table weekly sessions, and that then mutated into a multi-DM West Marches game, with 4-6 DMs running sessions, a couple of whom do have a regular weekly slot. In the Sunday evening session where I usually play, there's usually 6-8 players (often on the higher end of that) because the DM is good and it's been the longest running stable time slot on the server. But that rotates a bit. Just in the Sunday sessions there are at least twice that many players who play occasionally, but it's a mix of folks on any given session. Again this circle has no overlap with my other games except for myself. The new DM from my 5E group tried a couple of sessions but is focused entirely on his own campaign now. All told, I've played with 4 or 5 different DMs on that server, I think? And probably 30+ individual players in the last six or seven months. Not all of whom I regularly chat or play with, though. Call the circle of folks I've played and/or chatted with on an ongoing basis about two dozen.
I also have some old friends I used to play 2E, 3E, 4E and a little 5E with whom I haven't been playing with recently. A handful of them I was playing with in an in-person game which had just a few sessions before the pandemic started, but the DM didn't want to transition to online play. Most of those folks I am still friends with, and in intermittent contact with through Facebook or otherwise, but haven't hung out with lately. Some of them really close friends. If I count up those folks? Probably another 15 above and beyond the folks I'm currently playing with.
I have a number of friends I've played Magic: the Gathering with. A number of them are in the group immediately above; my 90s and 2000s RPG buddies mostly also played Magic. But after largely dropping out in 1997 and not buying new cards for a long time, in 2013 I started playing Draft and Sealed a lot, attending local store tournaments, occasional state championships or regional Grand Prix. There's a bunch of folks at three different local game stores and in a local cube drafting group who I'm still friends with, although I haven't been really playing competitive Magic or buying cards for two or three years as I've focused more on D&D. Non-overlapping people in this circle? Three or four dozen, I suppose? Call it at least 30 who I occasionally chat with on FB and/or whom I'd easily be able to hang out and talk strategy with if and when I go to a local draft or tournament again.
I also have some friends I used to regularly play Warhammer and 40k with. For about 10 years or so I played a LOT of those games. Building and painting a half dozen armies, traveling regularly around New England for one-day tournaments in NH, MA, CT, RI, and ME. And sometimes attending weekend long Grand Tournaments or similar events in Boston, Chicago, Baltimore, New York, Philadelphia, and a few other places. One time the Throne of Skulls event Games Workshop threw in Las Vegas (2011). I made a ton of friends doing that, though it's been, goodness, four or five years anyway since I was playing that game regularly. One of my local buddies (the twenty year friend above) and I still get together sometimes to play a casual game of 40k or another miniatures wargame like Song of Ice and Fire. Most of these folks I don't see anymore; a fraction of them I see on Facebook. Actually, after I stopped playing Warhammer competitively I tried out Kings of War and started to make friends with a bunch of other folks in a couple of clubs for that here in New England. I'm not close to any of those guys, but once they start running tournaments again I'll probably dust off the miniatures to play the occasional game with them. Counting all the miniatures gaming buddies who don't overlap with the above? Maybe another 50 or so. Again, just counting folks I'd expect to easily have a friendly convo with, or whose brain I could pick about a paint scheme or an army list build. Not folks I've met and played a game with, but who we wouldn't necessarily remember each other's names.
I also have some friends I used to LARP with in the 90s. Most of those folks I fell out of touch with, because it's literally been twenty years since I played those games, but some of my 90s/2000s RPG friends still LARP, so a number of the folks I only knew through LARP have remained friends of friends. A dozen or so are FB friends. Back in the day this would probably have been a couple of hundred more in my circle, but I'd call it a few dozen, tops, who are still in my circle/I'm in theirs. Let's say another 30, not counting folks already counted above.
Convention RPG gaming? I used to attend 1-3 of these a year. There are definitely some familiar faces and folks who we know each other's names and have good memories of prior games, but not a ton. I'd really only count a dozen or so of those folks as in my circle.
Edit: Almost forgot board gaming. There was a local board game meetup group and there's a boardgame cafe in town I know some other folks from. I didn't do a lot of that, though. Maybe 5-10 of those folks I'd still call friends and we occasionally see each other at one event or another and catch up.
So, all told and not counting internet forums... say, around 200? About half of them being notably closer and/or of longer-association than the other half.