I appreciate your sharing your experience, I’m sure it will help others and/or provide a note of caution. I once lost thousands of emails because I wasn’t aware of something I apparently should have been aware of. You can bet I went forward doing things differently. A password management system without a backup could be very difficult. I sincerely hope you have a connected device that hasn’t been synced yet. I would not have thought that deleting the Google Chrome browser history would also delete all the passwords too.