I think it primarily has to do with Microsoft requiring motherboard manufacturers to include their key, but other operating systems don’t have the pull. So it could potentially be seen as a form of lockdown. Personally I also don’t see the issue, especially now since it’s been a soft requirement for Windows for so long that most Linux distros just handle key generation and enrollment when installing.
I think it primarily has to do with Microsoft requiring motherboard manufacturers to include their key, but other operating systems don’t have the pull. So it could potentially be seen as a form of lockdown. Personally I also don’t see the issue, especially now since it’s been a soft requirement for Windows for so long that most Linux distros just handle key generation and enrollment when installing.