It didn't use to be like that after the first wave, with comms such as sewing, there were some gardening subs as well... the only one that kinda took off was the woodworking sub, that's it.
I opened a few subs myself, related to tech, but not really computer related, none of them took off, only a few posts at the beginning and that was basically it, no new posts whatsoever.
I would argue that now, it's as user friendly as Reddit is. But, alas, now is too late π. There was a wave of instances dissappearing over night (vlemmy, fmhy, etc.), mods abusing power and... well, that crowd just felt safer with commercial media. At least their data and shared images won't drown into oblivion if an instance owner decided to just close shop π€·.