All users need a named license to authenticate to any Laserfiche product (with the exception of WebLink), and that license is valid across all Laserfiche products.  So, if you’re logging into the desktop client with a named user license, that same license is valid in Web Access (and vice versa).  If you don’t have a named user license, you can’t log in to either.  It doesn’t matter whether you’re using AD accounts or Laserfiche accounts; you need a named license assigned to your account.  In Laserfiche Avante and Rio, there is no such thing as a concurrent connection (again, with the exception of WebLink).

So, to answer your question: if you’ve got 10 named users on the desktop client, but a completely different set of users will be accessing the repository via Web Access, that second group of users will also need to be assigned licenses.