And? Different engineering, marketing, and procedural goals. It's not some some huge revelation that Microsoft emphasizes backward compatibility and maintaining a broad software catalog. There are pros and cons to this approach, both to the end user and to the platform as a whole, just like Apple's approach to advance the platform at the expense of supporting a "long tail" of software compatibility has its own benefits and problems. This choice has always existed.
Not one of Apple's platform shifts—0x0 to PPC, PPC to Intel, Intel to Apple Silicon, could have gone as smoothly as they did, or have, if Apple made the sanctity of its software catalog paramount. There are certain efficiencies that come from making a clean break, but also certain very real costs to the end user. If Apple's approach feels like an unmanageable burden, it may be a sign the platform you're on does not match your priorities. We are not beholden to any one brand.