falseprophet

Good to know. I was not sure I did it correctly.

I kinda like them, I wouldn't mind to have them as chess piecies

It randomly closes on me, it is very slow often, sometimes for no reason there is not audio even though everything is configured correctly and I need to restart the computer a few times.

You can install it directly, I have.

Yeah I don't understand why you get downvoted

Maybe they experimenting installing it on some phones, I had it but an different name. I couldn't find it in my apps lists but when someone posted a direct link to play store app page it showed installed.

Sometimes it uses a different name I have noticed, try to see if something with a similar is listed

Lots of German Web sites do it.

Maybe, I am not very familiar how activitypub works. Maybe he can work around it.

Well he is already doing that with piefed

And the answer is still none.

Hi, I am a KDE Neon user too. While I never had this specific problem, I had various severe bugs appear randomly after system updates. Usually they get fixed again in future updates. So check regularly for system updates to see if this gets fixed.
Additionally try switching global theme for example from Breeze Dark to Breeze Light. Sometimes the global theme gets corrupted.