I really had the impression that with these new Snapdragon devices, that compatibility would not be an issue anymore with the improved emulation based on all the blog articles and the way Microsoft promoted it. But based on actual customer experiences on Reddit and X, it seems like there's a growing list of incompatible apps.
This was never stated.
It's performance they officially stated as improved.
This is no different on MacOS incidentally, certainly in the early days. It tended to get ignored in Apple journalist circles because the use case of MacOS is generally much narrower.
Qualcomm never said for example Google Drive or Google QuickShare would suddenly work sadly.
It's performance not compatibility that's been the focus. Compatibility is largely good but there are gaps that it's still on the developer to fix.
And given Windows support for old software may never be.
But it really does depend what you're doing. Like I said MacBooks have been shielding from this because people just don't use the same kind of niche software that Windows offers.
I can for example wirelessly print to my Epson printer (built-in in Windows 11 drives), scan to it (using the OEM app this time) and even transfer music to my Sony MiniDisc from 2002.
All with no issues using my Signature Pro X.