Check out Armcord. It’s a 3rd party client with many customization choices (mainly due to the fact that it bundles Vencord and Shelter client mods).

Which TED talk are you talking about? Can you post a link?

I don’t know why, but my instance seems to not index them for some reason. Some communities had some posts when visiting from my instance but after a few hours, all the posts disappeared and some NSFW communities have become empty. What could be the reason for this?

Renoise is an excellent tracker-based DAW with Linux support (you still have to find Linux-compatible VSTs though). It changed the way I write music.

EDIT: I know there are FOSS trackers like MilkyTracker. If you want an alternative, I can recommend it, even though it doesn’t offer the same amount of features as Renoise (e.g. VST or effect support).