DeletedUser242 Both Bitwarden and Pass have export/import options. You could periodically export from BW and import in Pass on some set interval you decide, but it is a manual process. Since interoperability is pretty strong between PW managers, I wouldn't feel the need to maintain two accounts, but I definitely get why you'd think about it.
Personally, I make an encrypted backup of my PWs every month or two and store them in multiple locations (3-2-1 backup method). If I ever get locked out, I figure I could migrate to another manager and it would be hassle free to import.