I'm on Ubuntu Studio 24.04, running kernel 6.14.0-37 - everything seems to be working fine here.
If I work on any large, hi-res videos from my 4k video camera, sometimes things are a bit jumpy in the video editing software. But that's because I'm using an old laptop with a built-in monitor that isn't HD and has a crappy graphics card, so the video has to be scaled down on the fly and is just performing terribly. But that's not a kernel problem, that's my hardware being old and crappy.
But playback of any downloaded videos I have, at more normal resolutions are absolutely fine.
EDIT:
Just re-read your post and realised you're running VMs. So maybe it's a VM specific thing. But it's not happening for me on bare metal!