HI
If we allow redirected printers to be installed on RD session host server, I confirm that the end user can use default printer which is redirected from win10(or win7) computer in remoteapps like picture. By default, remoteapps will use default redirected printer for each opened remoteapp.
On session host servers, we need to check below policy
Computer Configuration>Administrative Templates>Windows Components>Remote Desktop Services>Remote Desktop Session Host.
(1)Do not set default client printer to be default printer in a session
set disable or not configure.
(2)Do not allow client printer redirection
set disable or not configure.
on client computer(win10).
We need to select "printers" option in RDC software like below picture.
============================================
If the Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.