I’m à qdirstat guy : https://github.com/shundhammer/qdirstat

From AUR yes. I did not test the flatpak. It needs some time to know how to use it but it is rewarding.

You can have a look at this superb list for you to test other softwares : https://www.linuxlinks.com/best-free-open-source-music-players/

Tauon is really, really great. But because it is not the most stable on my system (arch) I mainly use Strawberry which is also great.

It is heavily inspired by foobar2000, one of the GOAT under windows IMHO.

Just put an airtag on it!

https://www.dailymail.co.uk/news/article-11206341/Kim-Kardashian-esque-French-policewoman-goes-viral.html

It’s not even shopped. Have a look at 0min36s : https://www.youtube.com/watch?v=EOVz0U3U0ko&t=37