I have the same problems. I switched to iPhone, just for security reasons. The situation has improved, but my photos and screenshots are also disappearing. The same problem with sending emails to the police. 13/1/2025 my account was logged in by a “second device”, this is my first device from Apple. I have never owned another and I created my iCloud account and Apple mail adres here. The problems started after logging into my hacked Google account at the request of the CZ police. Then my password box was broken. Unfortunately, my English is not at such a level that I can solve this situation with Apple support. I am also writing this message using Google translator.