comment about the linked blog post: he replaced Proton Drive with Synology, which is kinda cheating (comparing apples to apple trees). Also he did not include a cloud drive in his pricing calculations, which is also cheating...

Anyway, for anyone actually looking for good cloud drive hosting, without any BS: rsync.net (you encrypt on your side before sending anything. I use Vorta with them).

Also the same server can be used by multiple (trursted) users, like family members etc.