@hl0dwig

I'm no expert so take my advice with a dose of salt.
Consider Fedora. I've found it to be more stable and have more frequent updates. If you really want to get deep, check out the Arco Linux learning path, but I wouldn't recommend it as a starting point.

I am something of a FOSS evangelist but I am not and absolutist. I use Icedrive for cloud storage.

For mobile consider Lineage OS or Graphene OS, Linux mobile isn't quite ready imo.

So, some options 😁
Welcome to the rabbit hole.