Personally I’m not ok with being locked out of potential computing power by platform so I can’t get excited as MS struggles to keep up.
It’s either MS keeps up or the future ahead is dark.
You say that as if Apple will become some sort of PC-market hegemon, driving consumers and professionals to use its proprietary ARM hardware and OS despite having traditional Windows- or Linux-based workflows, simply because Apple's ARM is just so much faster.
Here's the third option: nobody cares what Apple is doing over in its corner of the PC market; the PC market remains an x86 market; and it continues to be driven by the needs of corporate buyers buying 1000+-part orders of PCs to outfit entire (non-IT!) businesses with; where those businesses don't care about having the fastest computer, but simply need "a" computer, with support and parts their internal IT department can swap out when needed; where the biggest factor driving purchases is TCO; and where TCO is driven down by commoditization and competition, not by vertical integration.
Microsoft cannot keep doing what they are doing.
Even in Japan, where "nobody" owns a home PC, offices are still full of PCs; nobody is being handed a Macbook to do their work from, let alone a phone or tablet.
In my opinion, it's perfectly fine for Apple to win the "sealed appliance" space — since ~everybody else (your Samsungs, your Xiaomis, even Google) is just trying to do the same proprietary vertical-integration play that Apple is doing in that space; they're just worse at it than Apple is.
In contrast, Apple will never win the PC space, since their whole market strategy — "give people something different that forces them into our ecosystem" — is (and always has been) anathema to how boring, non-IT businesses want to use computers. Even companies whose workflows depend entirely on macOS "killer apps" (like desktop publishes back in the 1980s), who begrudgingly buy Macs to fulfill those needs, constantly lobby their app-developer ISVs to go multiplatform, so that they can toss out the Macs and revert to doing the same boring PC-centered IT that every other company around them is doing.
(And do note that Apple isn't trying to win the PC space. They were trying, historically — maybe up until the year 2001 or so. But ever since the iPod, and then the iPhone, Apple's strategy has moved to treating the Mac as a halo product category — a nice-to-have for those already in the Apple ecosystem for other reasons — rather than as something that's going to usurp the PC in its place one day. It's why, around that time, they killed XServe and Airport routers: they saw no further benefit in attempting to achieve corporate ubiquity, rather than complementarity.)
