This is only true if you count ARM tablets as "PCs", which most people don't.
No, UEFI Secure Boot is UEFI Secure Boot. The fact that Microsoft exercised this ability twelve entire years ago on a platform where they thought they could get away with it makes it worse, not better.
Why does the type of a general-purpose computing device matters?
No, UEFI Secure Boot is UEFI Secure Boot. The fact that Microsoft exercised this ability twelve entire years ago on a platform where they thought they could get away with it makes it worse, not better.