Proton Drive stores a maximum of 200 versions of a file. If, for example, you save frequently when programming, you can quickly save 200 versions. For example, I would need a version of a file from 2 days ago. Unfortunately, the history only goes back to yesterday.

It would be good to save versions of a file at a time interval. For example, 5, 10, 15 etc. minutes between the modification time of a file. This would be a global setting for the version history.