Linux has stopped working on my Chromebook, but I can still give my prediction. I have noticed the installer is a .SH file that installs it with Wine. When Linux was working, I never had success with Wine. Some programs worked fine on my Linux Mint computer, but on my Chromebook, I would get a file not found error. I have seen it working on many YouTube videos, so maybe it's just my Chromebook. If it does work, it would probably be very slow because it is on an emulator on a virtual machine.
A possible solution in the future would be
Ruffle. It is an open source Adobe Flash emulator. So far it does not support ActionScript 3, but they are working on that. Ruffle could be installed on the server and users would not need any setup.
https://ruffle.rs/#compatibility