I’ve seen some impressive traction on newer videos putting Linux on (intel) Apple devices for example. Purely anecdotal but regularly hitting 100k+ views on Linux videos is something that I’ve only seen in the last year or so and moreso on videos documenting “hardware restoration”.
TLDR you might be interested in the rust-based scheduler one of the Canonical Devs released as a PoC. Seemed to be designed similar to your needs of keeping the system (particularly games) responsive even whilst running heavy tasks like kernel compilations. You can swap out schedulers at run time on Linux iirc?
https://www.phoronix.com/news/Rust-Linux-Scheduler-Experiment