It's irrelevant. They've been trying to do those things for years but their ability to execute is completely gone. Their efforts to improve things just make stuff worse.

To name just a few examples: they want all code to be signed but Windows code signing certs are more expensive than the Apple developer programme membership, much harder to obtain, the rules actually make it "impossible" in some cases like if your country issues ID cards without an address on them, they're now forcing mandatory HSMs and if your CA decides to change your subject name you're just SOL because only Windows 11 anticipates that problem but Microsoft can't be bothered maintaining Windows 10 anymore so their solution was never backported. Yet, the Windows 11 security hardware requirements mean many people won't upgrade.

So whilst building a theoretical strategy around sandboxing apps, they aren't even able to get the basics right. If the people making these decisions were actually writing Windows apps themselves, they might realize this and Microsoft would be able to get its teams marching in the same direction but there's not much sign of that from the outside.

Compare to how Apple does it: they run their own code signing CA, assign stable arbitrary identifiers to companies and people, and still manage to sell these certs for less than a Windows certificate whilst also throwing a couple of support incidents into the mix too, something you can't even get from Microsoft at all as far as I can see (and I've tried!).