Usually if you have the boot.img file for your current instance of Android you can root most devices using magisk. Make sure to turn off auto update though

I used the regular soulseek client via the Linux appimage, but I switched to nicotine plus when I found it on flathub and I can confidently say I'm never looking back.

Could ask the foss community as well since most open source software is privacy friendly by nature

Well this blows, fedora is my favorite distro

I strongly suggest you take a look at this website for all sorts of privacy tools and applications privacy tools