What about they make it same level as Bitwarden or KeepassXC? Proton is not a new startup with 10k budget and 5 people, right?
I just installed KeepassXC to test my 1Password export file, and it even imported files within the logins. Only passkeys are missing, which is no longer important at this point. It also imported license keys, SSH keys, IDs with files, bank accounts and credit cards with all the fields intact.