There will be tougher usecases to migrate. Which, depends on how you use Google.
For example, I've never read Google News but am having trouble replacing Keep for synced, widgeted notes (groceries etc) on phone, as well as GSheets for synced, collaborative excel-like sheets with good mobile UX.
Also, I would bundle mail and calendar in one (it's a single button to import both in Proton and those services are tightly coupled) and check your duplicate browser/chrome mentions
I should try Gaterons sometime. I've only ever used Cherry MX Brown. Happily using those atm with my second mech keyb, a Filco TKL. First was a Corsair full-size, also Cherry Brown.
And I've tried linear in a shop once, but I hate those. Feels empty to me, like there's no switch and only makes me push into the frame harder.
For my next keyboard, I'd like something programmable (Caps Lock as Ctrl, hjkl with Fn as arrows, etc) and smaller, no need for F-keys and separate arrow keys.