[Conan_Kudo]

On Linux, you can check to see if the kernel is operating in lockdown mode to verify the integrity of the system. Lockdown mode forces all modules to be digitally signed and trusted by the kernel keyring before they can be loaded. This would functionally be equivalent to what you do on Windows.

[iso8859-1]

Don't you mean tainted?

https://unix.stackexchange.com/a/118117/14305

[CorrectHorseBat]

No, that's something completely different. The kernel is tainted when you load out of tree modules and only means they won't look at your bug reports. Lockdown mode is something similar to the Windows driver signing https://www.phoronix.com/scan.php?page=news_item&px=Linux-5....