good news, actual we working at a Webbase App with P9 in the background. 
Webbased server-Debian11-xfce4-Wine7-Paradox 9 Runtime-tomcat9-RDP for 
screen

Is not finished, but fast enough, the largest problem: tablets without 
mouse and keyboard, because the wipe-gesture is not to catch from 
Linux-site or Wine-paraodox. With Mouse and keyboard all fine.
filetransfer is very tricky, but how wants today file's, look and throw 
away is todays best practice for all.

If there is a trial, i'll announce it here.

Günter