Well you’re talking about booting off them, I’m talking about the drive not even being detected as a USB device, let alone be mounted.I have.
Also, I have had the scenario where a specific USB device could not be used to boot a specific computer. For example, I have two Lexar USB flash drives, different models but nearly identical looking (aside from the colour). One of them boots all my Macs (if loaded with a bootable OS of course). The other one doesn't, even though I can use it after the OS is booted.
But even if that was the case this drive worked perfectly fine before Monterey.
Literally after installing Monterey every single one of my Macs refuses to detect it while plugged in, but it works if they boot with the drive inserted so clearly it’s a software issue specific to Monterey that can and should be fixed.