The only problem I had was just an irritant. I can’t leave the computer while the update is installing because my default boot is into Linux. This late update took three restarts, three times for me to direct it back in Windows.
Windows has been well enough behaved that I've just been running Linux under Virtual Box on Windows... up til now.
I haven't kept track of the BIOS changes, and don't fully understand the Secure Boot/UEFI issues. I didn't want to bypass all of that to make a Unix first machine, although I did do that on an older computer, where I let GRUB determine which system I went to.