Since simple mobile tools will soon become a spyware and I use 3 of their apps regularly, yesterday I installed F-Droid after reading many Lemmy recommendations.
Wow, I'm pleasantly surprised.
A new app I've tested is Spotube (Spotify open source alternative; edit: apparently it uses Spotify metadata but it streams from YouTube. My bad.).
Aaand now uninstall it again and try F-Droid Basic. Its the version of F-Droid using modern libraries, which is way more secure. Featurewise that means modern apps have automatic updates
Annoying but thats why I always recommend to install that APK instead. You can just install it from F-Droid.
I tried all other F-Droid clients and they all have some bugs. G-Droid is discontinued but had an awesome rating system, Neostore has cool features but seemed buggy, Droid-ify is just fancy and has many repos preinstalled (but deactivated).
The lack of 3rd party repos being already in the menu with just a click away is the only problem with the official clients.