Microsoft loosened the kernel driver requirements to allow anyone to register as a boot driver as long as a CA digitally signs them. Microsoft asserts that this was done at the EU's behest. They could tighten the driver requirement for the RoW, but that would lock Crowdstrike out and likely trigger antitrust concerns again.
If Microsoft had their way, I imagine they would require verification through their driver lab that does this for a living (https://learn.microsoft.com/en-us/windows-hardware/drivers/i...)