UAC is similar to Microsoft SecureBoot to the extent they can both be user-unfriendly false-sense-of-security "features". But UAC is not built into the motherb

UAC is similar to Microsoft SecureBoot to the extent they can both be user-unfriendly false-sense-of-security "features". But UAC is not built into the motherboard, it's just a part of modern Windows, and it's only a factor when running Windows. While UEFI, GPT, TPM, and SecureBoot immediately acted as major stumbling blocks to any OS not already installed on the PC at the factory. Insidiously smoothed over to behave on the surface for Windows 8+ no differently than under traditional BIOS, these were and still can be major stumbling blocks to the use of Linux or previous versions of Windows. Plus with 20/20 hindsight as we have seen, CSM, regardless of the upcoming industry removal schedule for the CSM firmware modules, is not a full BIOS substitute for the real thing. As predicted without having to possess 20/20 foresight at all.