Social network Reddit recently began blocking mobile visitors to its website while pushing them to download the official Reddit app, and it's fair to say that the move is not going down well with users. If you visit reddit.com on your iPhone today, you may see a new popup that can't be dismissed, asking you to "get the app to keep using Reddit".
To be fair, I didn’t know anything about the fediverse until I got banned from Reddit. I had tried all the other platforms you listed but none had the interactions the same as Reddit. Too bad we can’t get more publicity somehow.