There is scripting on them, and afaik it’s actually javascript. It’s a limited version of it (the actual specification was supposed to allow for data sending and receiving, and complete arbitrary code), but it’s enough to run code. A madlad has ported doom and linux to PDF, and you can fully run them on a compliant enough pdf viewer.

LinuxPDF
DoomPDF

(My bad, I wanted to reply to a higher post, but I’m gonna leave this here cuz federation is sometimes weird with deleted comments)

Blender was made for Linux, the compatibility issues happen with windows (they’re still really rare, blender is an amazing program).

Dunno about houdinifx, I don’t know that software.

And I’m assuming you mean Unreal Engine with ue, in which case, game engines not only should work on every platform but they’re especially tested on linux cuz many developers use Linux.

As long as you are in some way connected to the same network as the TV (by cable, wifi, black magic…) you can use jellyfin.