YMMV and all, but my experience is that Wayland smoothness varies considerably depending on hardware. On modernish Intel and AMD iGPUs for example I’ve not had much trouble with Wayland whereas my tower with an Nvidia 3000 series card was considerably more troublesome with it.
> my tower with an Nvidia 3000 series card was considerably more troublesome with it.
I think you're describing a driver error from before Nvidia really supported Wayland. My 3070 exhibited similar behavior but was fixed with the 555-series drivers.
The Vulkan drivers are still so/so in terms of performance, but the smoothness is now on-par with my Macbook and Intel GNOME machine.
As a user...why would I care?
If my Ferrari has an issue with the brakes and I go to my dealer I don't care if the brakes were by Brembo.
Blaming the vendor and their drivers is just trying to shift the blame.