I agree. It is big business who generally need to keep renewing computers to the latest versions, driven by the tools they use, all of it needs to stay integrated, all the time. Nearly all players are actively updating their products in a way which actively sabotages older versions, and thus newer software becomes incompatible with older hardware, whilst newer hardware becomes incompatible with older software, it is a game everyone involved has to keep playing to remain competive and profitable. Small research / consultancy players in big business in the domain of gaming, simulation, and 3D image / metaverse / VR processing have the worst of all worlds, we have to spend an awful lot of money keeping our stuff up to date to remain compatible, and thus competitive.
All the while, Microsoft owns and controls the foundation of pretty much all software in big business. If something happened and MS decided to just switch it off tomorrow, well, that would probably do more damage than any nuclear bomb.
I always keep at least one previous machine redone with linux, so it still does useful work as a server, but could instantly become my main machine if / when the single point of failure which is microsoft, fails, as it has to one day, lets face it.
Using a reasonably modern linux machine is like a breath of fresh air, it is truly amazing to see the power of modern hardware unleashed by having the bloatware associated with microsoft removed.