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

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.