Yes. That’s why I sync my important files to my nextcloud.

Timeshift creates a btrfs snapshot on each boot for me. And my server gets nightly borg backups.

With the current pi prices, buying a used minipc might be cheaper and give you more resources.

Try the 64bit version. pi 3b should be compatible with it. Using the official flashing tool might fix any other issues.

Yes. I see no feasible solution to this, without impacting the reader experience.

Now we need something like nightshade for text.

Obsidian, or a normal txt

I usually use kde connect.