I started playing in 1989 with 2E, and have played in 7 groups playing 2E, 3.0, 3.5, d20 Modern, PF1, and 5E.
The latest group I'm still playing with, and I joined through a Gamers Seeking Gamers post on this very site. This is the first group I've ever played in where I didn't have any personal connection to any of the other players prior to joining. When I joined them, they were playing PF1. When 5E came out, they wanted to test it, but I didn't really care for the comparatively light rules, and sat out. When they said they were going forward with 5E, I jumped back in, since good groups are hard to find and I'd rather play a sytem I don't like as much than roll the dice trying to find a good group playing what I want. When I had to move out of western NY to NC, I continued to play, with them meeting in person and me joining through Skype. Now with the pandemic raging, we are all playing remotely via Roll20.