For me, I don't like using die-rollers at FTF games.In a number of areas in my life I've given up technological conveniences, either because I've found them too intrusive, because of enjoyment of older analog ways of doing things, or because I felt certain mental abilities were atrophying. For example for the most important telephone numbers I generally "dial them" rather than using speed-dial or voice shortcuts to ensure they remain committed to memory in case I lose access to my devices. I started trying to rely on my GPS a bit less when when I found I wasn't remembering directions to places I've been to multiple times. Things like that.
I'm not averse to e-readers at the table for rulebooks. I've got a 10.5" e-ink reader. Over 3500 pdfs on it, but about 1/3 are my notes and adventures. I wish it were color e-ink, but it's grayscale. I wish it were faster, but it was pretty fast for eInk at the time I got it.
I don't like use of vtt's at table.
I really don't like people tuning out when it's not their turn. Especially when it's into videos.