I suspect most large companies won't adopt this until 2025 after W10 support ends if W10 isn't supported. Even if we get most of our PCs migrated to 11, I can guarantee, there will be a few stragglers on 10 right up until the end. Please consider this as a reason to backport this to 10.

Unfortunately not. We recently performed a full fleet device refresh and we're usually on a 3 year cycle for these things. I honestly don't know if the current devices even fully support Windows 11 but the bigger reason is the user interruption. We all know users LOVE change from IT and I realize Windows 11 isn't that big of a departure from 10 (as it was from 7 to 10) but the amount of grumbling that happens isn't nice to hear and deal with.