I’m looking to reduce my dependence on Google services as much as possible, and Proton seems to offer the most comprehensive private suite. A number of things seemed to be missing, but most of my information is from reviews that could be out of date. So I wanted to ask which of these features Proton can replicate.

• Thunderbird mail syncing (without paid plan?)
• Thunderbird calendar syncing
• Calendar sharing
• Easy move from google drive to proton drive
• Sync android photos like google photos
• Offline file saving for specific files in proton drive on android
• Sync with folder or mount on linux (smb or similar)