Not that I know of. But it won't install on "normal" PCs, it requires "workstation-level" CPUs. If you install it on a regular PC, it will just revert to regular win 11 pro.
I don't know if this changed with the 22h2 upgrade, but it's the behavior I'd noticed before.
That’s not the case at all, and never was. I remember when Microsoft gave out free upgrade licenses for Windows 10 Workstation when it first came out, and it’s just an upgrade.
The weird CPU spec thing is that Microsoft doesn’t let you sell a high end desktop computer with “regular” Windows Pro, and requires instead that it comes with Workstation. But you can either version on any grade of CPU as long as it runs Windows in the first place