Once having validated that it was not the product manager, or whatnot manager that decided that it was good enough to go, yes, sure, but are developers given the time to root out bugs?
"I think as soon as companies realise that an iPad is "good enough" for email/excel/word workers, we'll see an even more precipitous decline of the desktop operating system experience."
This has a ring of SurfacePro as a corporate EUC choice. Quite common these days.
Davmail is the shim I used to proxy OWA / exchange ansmd present an IMAP interface towards neomutt. Used this setup with three companies, worked well, and unified the UX instead of the different Gmail and Outlook web slowness.
+1 for Syncthing. I've been running it for years, after my student discount for Dropbox expired (Google drive and OneDrive were just getting traction at the time).
The mobile experience last I tried was pretty rough though. I don't really need my files on my phone and I have a web interface on my home server I can use to grab them in a pinch, but it's something to keep in mind.
You are most likely in France: your government does not allow publishing an app containing cryptography (in this case, Golang's crypto implementations and a package used by Syncthing - only using iOS libs should be fine) without authorization (which can only be obtained through French forms, at which point I'd want a French lawyer to be involved, so no).
You could of course build the app yourself from source.
Syncthing is great, but no good for mobile devices if you want to store and access lot of large files - it syncs everything, and last I checked, the features to prevent that were depreciated.
I am still trying to turn the clock and read books (on paper), at least before bed. Decrement the screen. I must be lazy. Going back to the screen to do nothing is so much easier.
The last 20th century vice. It's mine.