I use the name Seedling or Seedling Games on the Internet to talk about tabletop RPGs and other related creative things.
Sometimes I make things as well, you can find my website here: https://seedlinggames.com/
Itch is great, I’ll second that recommendation. It also has some really indie stuff you can’t find anywhere else. I think it’s DRM free in the way GOG is, in that the platform doesn’t support DRM. A good number of games are free, and some are open source as well.
Also it has tabletop RPGs!
there are some, but they tend to quickly become spam and nazi instances. I’m guessing even those ones defederate from the instances that only serve malware though
I really like Mastodon, so much so that I have several accounts for different purposes. You do need to invest a bit of time into following a good number of people who post stuff you like, though. I was pretty active on Twitter and now I’m pretty active on Mastodon and I like Mastodon better, but I had to spend a little time searching hashtags for people posting cool stuff.
One thing that I haven’t seen anyone mention is moderation - your experience will be better with a well-moderated, well-run server, otherwise you’ll have issues with spam and maybe worse. Generally a medium-sized server based around a subject of interest or a geographic location works well, where the admins are actively involved in the community.
I think you can ignore the “pending” thing.
I did just learn that if you’re the first one on your server to subscribe to a community, you’ll only see new posts from that point forward and not old ones