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
Mail & Calendar -> Posteo
Drive -> Filen
VPN -> Mullvad
Password Manager -> Bitwarden
Don’t place all of your eggs in the same basket