I mean there’s Reddit ofc, as well as Twitter in its entirety, Discord is implementing some dumb updates, there are issues with Tumblr as well as everything to do with Meta, and I’m sure there are plenty more (and I haven’t even touched other digital media, for example the Sims). Why is it all happening in the span of about a couple months?
Lemmy is very lightweight and you can run it on $5/mo or even free tier VPS if you’re the only user for the instance. I myself run my lemmy instance on a low power pc in my closet and route the traffics via a $3 vps (essentially rented for its static ip address).