They used to have their own "youtube script interpreter" that was kind of fascinating.
But yeah as you said they switched to proper js runtimes recently.
For me, and despite the constant enshitification of Plex, the apps are still better.
But I'm really close to the tipping point, I've been tinkering with making Kodi not suck but custom themes really seem like piles of unsuported plugins.
Not sure why this is so down voted.
I have a touch bar era Intel Mac, I regularly check the state of Linux on it and they are still somewhat poorly supported.
Some drivers are out of tree, audio and sleep doesn't necessarily work, etc...
I would guess so, as the BC-250 is basically a PS5 with 24 instead of 36 CUs. For the curious:
https://github.com/mothenjoyer69/bc250-documentation
I would guess that he could leverage the APU support that was merged with Mesa 25.1.