[hnkgnn]

I did several years ago, it was very straightforward: Export all your passwords from LP (keeping a close eye on where that file is downloaded to), and then import into 1Pass (then permanent-delete that residual downloaded file since it's plaintext of all your user info). Test with 1Pass and browser extensions. Then cleanup in LP: delete all passwords, then deactivate the account, uninstall browser extensions (and watch for any sneaky subscription auto-charges later, which I did experience and had to protest). Passkeys might require reset, I didn't have any when I migrated.