Great job. Anything I offer is a minor quibble. There are doubtless an infinite variation of ways to skin the cat depending on preferences and circumstances. And there is something to be said for limiting the number of options presented in a “how to” document (in spite of my suggestions below)
I would suggest verarypt or cryptomator for exports. Cryptomator file-level encryption is well suited to syncing changes immediately to multiple copies of the encrypted database (typically one local and one on the cloud) because it only has to sync the changed files, not the entire vault. Having an up to date encrypted copy available on the cloud could be handy in certain circumstances.
In terms of backup for 2FA, I use Aegis TOTP for android which can be set to automatically export encrypted database every time you change anything in Aegis. I sync the local export directory to the cloud with Foldersync for Android. Again having access to encrypted backups on the cloud can be a lifesaver if something happens when you are far away from your home base and home devices. Those who store their 2FA inside of bitwarden already have their 2FA backed up with their bitwarden (except for the 2FA that they use to get into bitwarden).