@CiaraNi I did exactly this not long ago, I had already migrated to proton mail and all my photos are stored in a repurposed dell PC turned into a server, 6 TB of storage is more than enough for a family of 3, the only thing i need to do is delete my Microsoft account, once i have updated my online accounts to my proton email address is bye bye MSfT , my google account has a fake name so i dont care about that one, no contacts on google, no photos on google photos. All in my private server now.