When your Phones 1.5GB of RAM are always 1.3GB full and your CPU almost always at 100%, because you are running Android 11 (LineageOS) on a Phone from almost 10 years ago, then Jerboa starts to be quite a bit faster than Fennec (especially with uBlock0)
Inject liberally into ~veins~ switches, connectors, and other electronic moving parts that I'd like to be waterproof.
(0. Cover PCB in nail polish or specially-made products)
I use this: https://f-droid.org/de/packages/io.github.muntashirakon.Music It's nice.
This is also an interesting concept: https://f-droid.org/de/packages/rocks.mucke/