Got excited, then realized I'd already seen it. I like these kind of videos too, something very satisfying about the creativity plus the dedication to pull this stuff off.
Maybe https://www.youtube.com/@DisplacedGamers/videos it's a bit dry and code heavy comparatively though.
https://www.youtube.com/@SwankyBox mods old games for challenges and to show off cut content and stuff.
Lots of "history of speedrun records" channels have a similar vibe, but not quite the same thing.