Would that be the same Microsoft that approved and digitally signed the buggy CrowdStrike Falcon Agent kernel mode driver for Windows?
Windows kernel signing does not work like Apple's Big Brother approach, it uses a set of certificate authorities.
Microsoft does have a program for verifying drivers: WHQL, which you may recognise from the slower driver that Windows Update installs for your GPU before you download the faster one that didn't pass Microsoft's verification from the manufacturer's website. CrowdStrike doesn't seem to be WHQL-certified.