Hi @Limonene@lemmy.world! It’s so hard to grasp as a casual user the actual benefits from file systems. I use ext4 on all my devices.

Could you point me to the required feature a file system needs to have in order to recover files after removing it with rm -rf?

I heard there are tools for my current file system which could help me out; But is there some file system with a rm-cache (until the disk is powered off or the cache is full).

Unix Permission is a must.

Would appreciate some general hints (I do replicate my personal important files).

https://www.aquamaniac.de/rdm/

Gives you an adapter and an standalone tool. All banks should use the same API, apparently.

Maybe you can use some German bank. They allow one to interact with their API for free. I use GNU cash for it. Though I doubt that you can file your taxes via GNU cash and be aligned with current UK law. You would need to check it for your own.