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
ENTE for photo storage: https://ente.io/
Crypt.ee is also an option.
Have a look at: https://www.privacyguides.org/en/tools/