Moving forward: always have an email client on a local machine downloading a copy of all emails. Have a local copy of all gdrive contents. Backup your password mangers to a txt file and encrypt it on a drive. And above all, dont trust google with all your stuff. They dont care. I lost a gmail years ago and only use it as a throwaway email client now. You get what you pay for.
Good for privacy too. It jas everything! Look through it an permanently delete what you don't want them to keeo.
Note that it is slightly lossy with respect to headers, times etc. Not ideal for anything legal related. For those print them off.