I’m still on google for email and a bit of drive, calendar etc. I’ve been reading stuff about Proton with some interest as I’d like to ditch google. This doesn’t encourage me - what’s the point of a mobile only plan? Isn’t half the point of a cloud drive to allow sharing with other platforms? I’m just thinking aloud here - I could go read their offerings where I’d probably find that it’s their lowest entry level tier and they have less restrictive plans with clients for various platforms?
The author of the article has no theory why they might have done this. I’ll suggest that maybe screenshots are used as a way to document obnoxious advertising, and Google would like to make that as difficult as possible.