Exactly

Also, the key word in these type of studies is “linked”, which means that’s only a correlation, with no proof of causality.

The way it’s written, it makes you think that the screen time causes anxiety and depression, but there are other studies that suggest the causality goes in the other direction, kids that suffer from depression tend to spend more time in social media.

Keepass is exactly that. Basically all the client side parts, and the database is a single encrypted file that you can sync however you want.