To replace everything. Mail, calendar, drive, vpn, password manager, documents etc. What are the pros and cons relative to proton? What are the mobile apps like? What assurances do you have they won’t go full proton in the future? And other questions
You mentioned another excellent tool, Aegis!
I use it too, and I have it set to auto-export every time I add a new OTP provider to my SyncThing system. Since you can encrypt the exports, it fits nicely and have my OTPs available everywhere.