If you need more alias addresses, you could pair with anonaddy.com and forward to one of your posteo aliases.
It would be nice if they reforwarded irc.gnu.org to libera chat, in the future.
It would be nice if there were privacy-non-abusive dating sites (since IMO dating in itself does require sharing bits of you publicly to make matches). I recall a few WIP projects but can’t find them now.
Of course… The bigger issue is the network and usage effect. I’m not interested in Test Test in X,-Y!
Edit: lol how convenient timing is this https://alovoa.com/
Yes, at least on Android I know there are a few!
Pixeldroid is the most well featured. I haven’t gotten it working on my device, possibly something wrong I did.
Pixelcat is another option, seems quite new.
Yuito Tusky fork with support for Pixelfed, not necessarily for Pixelfed.
I would recommend Pixeldroid to anyone looking for a mobile app. Pixelfed instances work well on mobile browsers though, which is a nice option. You can make new posts on mobile.
To add
Everyone should use ad blockers across all their devices (uBlock Origin)
Everyone should try to use DNS sinkhole applications/servers like Pi-Hole or Adguard Home or unbound