Right, but my point is that this isn’t some famous malicious intentional lock-in by “evil Microsoft” — it’s how every console is designed. (And arguably Xbox has an advantage here because it shares DirectX with Windows)

There’s no evil MS lock-in here.

Not really. It has nothing to do with console idea or form factor, it's just how these messed up companies are "designed" in using anti-competitive methods. See Steam Deck which uses Vulkan just fine.

There is absolutely lock-in in MS and Sony's approaches. There is no inherent need in it just becasue it's a console.