I guess now is as good a time as any for them to start using a proper password manager.
Personally, I recommend Keepass - it has multiple clients for all platforms, and you can keep the file in sync with a program of your own choosing, like Dropbox, syncthing or whatever you like.
Bitwarden is probably a more pragmatic choice for most users, given that it’s free and without having to manage the syncing yourself.
Any password manager is better than the alternative, though.
Keepass XC on PC, Keepass DX on Android, Syncthing to sync database
Works flawlessly!
Most amazingly, this setup is also unexpectedly resilient against merge conflicts and can sync even when two copies have changed. You wouldn’t expect that from tools relying on 3rd party file syncing.
I still try to avoid it, but every time it accidentally happened, I could just merge the changes automatically without losing data.
Keepass has been working with no issues
All of them are vulnerable to bugs though. Just a matter of luck.
Which bugs breaks Keepass encryption?
One of the mobile clients corrupted all passwords for me. I ended up losing only 2 passwords, and only 1 I wasn’t able to restore. Good lesson on why backups are important though :)
One of the reasons i use Mega to sync my keepass db across devices where it’s needed. They have version control, so if it gets corrupted then i can restore from a previous version