The RPi 5 SoC does not have VP9 hardware decoding which is necessary for YouTube videos. Anything above 1080p30 inside a window will suck.

Weird part is that RPi4 SoC has it.

Edit: confirmed by Raspberry Pi Foundation themselves, only hardware video decoder is HEVC.

And now instead of stopping producing them, we will continue with the excuse ‘we have the cure for the disease!’

Windows guests also run fine on KVM, use the Virtio drivers from Fedora project.

There are several solutions but will be above the budget. Best solution is the Argon Eon case for the RPi 4. I’m waiting for a version for the RPi 5.

Can house the Pi and either 4x 2.5" drives or 2x 2.5" and 2x 3.5" drives, all SATA.

Have a look at NewPipe app, might be of interest.