Welp, Ars Technica has another theory:

Microsoft’s Azure status page outlines several fixes. The first and easiest is simply to try to reboot affected machines over and over, which gives affected machines multiple chances to try to grab CrowdStrike’s non-broken update before the bad driver can cause the BSOD. Microsoft says that some of its customers have had to reboot their systems as many as 15 times to pull down the update.

https://arstechnica.com/information-technology/2024/07/crowdstrike-fixes-start-at-reboot-up-to-15-times-and-get-more-complex-from-there/