From the AMA, someone suggested
Yeah some Up/Download + simple management API would be really nice. Since Proton is loved a lot among programmers, I'm very sure there'll be a lot of people in the community to create some implementation their own (including me)
And Andy(CEO) replied
This is actually good/important input. We went this direction with Proton VPN on Linux and the first version was a community built version which as OK. Eventually, we had to take the effort in-house to ensure it was sufficiently well maintained and keeping up with the latest features, but it was still a goo way to get started. We will indeed consider this for Proton Drive also, although it is a more complicated product (includes complex parts like sync engine and version conflict resolution logic, etc). -Andy
Also, when pointed about Henry,Andy replied
Yes, we know Henry, he should have access to the API specs/docs and he has a direct line of communication with us. -Andy
So all hope is not i would say. And i would prefer rclone and apps based over than than electron wrappers tbh.
You can read the whole thread here : Redditt comment
Typing this comment from a Note 7 pro, from 2019. Other than lacking os updates, it serves me well for all my usecases.