I'm noticing the only release criterion that has secure boot listed is
an exception for Windows dual booting that I think is obsolete:
The bootloader entry part of this criterion does not apply when Secure
Boot is enabled (because it has not yet been made to work, and fixing
it is not trivial). cases.
I ran into that while trying to find a criterion for this bug being a blocker:
The inability to boot UEFI VMs seems like a blocker, but I have to
infer it from the pull down:
"What does that mean?
This rather concise criterion means effectively means that both
virtual host and virtual guest functionality must work - it's implied,
if you think about it. It also means that there must be no showstopper
bugs in the installer when installing to a virtual machine..."
But since there's no explicit statement, I could also make the case
that these days we should also block on bugs related to Secure Boot in
VMs, now that there's explicit support for it upstream. *shrug*