Question: What is the appropriate way to remove an account from an installation?

Is it enough to just click 'Clear users' in the Profile menu and then delete the data folder for that account in App Data>Local>Logos>Data

This row also features a Clear users button that signs out of every account except the current one. Users will not be able to restart as another user until they select one of the two options listed below.
  •      New user signs out of the current account and opens the sign-in window to login to another account.
  •      Sign out restarts Logos and opens the sign-in window.

(Logos Help. (2022). Faithlife.)

I don't think that helps. So just exit the app as normal and then delete both these folders:

• Data\userId
• Documents\userId

Make sure you select the correct userId. I usually go by size of the Data folder if one has clearly fewer resources than the other. Otherwise generate a log file (with CTRL key or CMD key) and the Logos.log file will include path names with the userId.

This is what I did. It seems to have mostly worked except that it recreated userID folders in the Data and Documents folders for the other userID when I restarted, but the folders are empty.

That is what I found as well.

I don't know how to make it forget the other account so as to not recreate the empty folders. I was afraid to try deleting anything else.

And if you switch to that user via the Account menu in Logos, I suspect it will re-download everything!

Clear users will remove that user option, so it is now "out of sight" but you still have the empty folders.

Do you know what happens if I delete the Logos\Users folder?

It will likely be sync'd back or.. disaster - your main account will be re-downloaded when you Sign in.

Leave it be and put up with the empty folders.

NOTE for other users reading this thread:-

Please don't attempt what Kiyah and I have done/discussed as some important details have not been mentioned.