Mine are generally found on top of my head, when not in front of my eyes, as I refuse to get bifocals.
We were having a similar discussion on a language compiler group about my excessively off-topic comments. I miss the water cooler and coffee break in person chats from the good old days too. I'm going to bookmark this thread to see if anyone has a solution. I tried creating my own Gitter group, back when you could, but ended up mostly talking to myself, like on dylan-lang/general.
I have a 13" laptop with a 1080p display, which is actually a higher dpi than a 27" 4k display. I have to run at least 150% zoom to be able to see anything. Too bad fractional scaling sucks on linux.
Unfortunately, "pixel-not-a-pixel" and "scaling" won out as approaches, when us greybeards remember being able to choose our font sizes, everything scaling in accordance (or well, at least all the Gtk+ 2 programs did) and X actually reporting the true DPI to software. For laptop and desktop use, I found it immeasurably better.
Sure, responsive layouts that work on tiny screens were missing.
Still, I find fractional scaling to suck even more on systems other than Linux, and some even make other terrible decisions to drop things like subpixel rendering (looking at you MacOS and all those non-existing 10K 32" retina screens).