Update; Proton got back to me and apparently it was my local drive, not a cap on Proton.

== Hi all,

I’m preparing to move to Linux and am backing up a number of files on My Files (so, not the synced files). I have used about 90 GB on my proton account, but in total i have 550 GB available. While i was moving files, i suddenly got a popup that i only have 2 GB left on My Files. So, there is a cap on that? I have never read anything about this. Does anyone here know more?

I’m pretty disappointed, because now it will take a lot more work to decide which files i really need to keep. When i install linux, i will only have the web version of Proton Drive available, not the app. In other words, once i move to linux (not dual boot), i take it that all the sync files will be gone and i will only have My Files left. Or will it still keep the latest synced version of all the files on my Drive?

Anyone have experience with this?