Everyone has their own opinions on this and their own threat vectors for their own personal situation. The following is my opinion based on my own situation whi

Everyone has their own opinions on this and their own threat vectors for their own personal situation. The following is my opinion based on my own situation which I believe to apply to the average person: I think it is safe to assume that Google does some sort of data mining on the data you upload. If that bothers you, self hosting everything isn't your only option -- you can also encrypt everything before uploading to your Drive. Duplicity is one such example that I use. Despite this, I still don't rely on Google Drive, not for privacy reasons but because of Google's history of disabling people's access. If your Google account is banned at no fault of your own, there is a possibility you could lose all access to those files. Even if you did nothing wrong, you will never in a million years get a human to review your case. https://www.businessinsider.com/google-users-locked-out-after-years-2020-10 https://www.businessinsider.com/google-users-locked-out-afte... I have had this happen to me, but thankfully it didn't affect anything other than Google Pay. I used it twice for a family member to reimburse me grocery money and Google decided that they were ceasing to do business with me anymore, they would mail me a check, and they told me to not contact them again. So, everything I have on Google Drive is synchronized to another paid storage service (mostly photos since I don't believe Google Photos has a very good open source self hosted alternative).