I think its going to be a 64bit only OS and the only way to use win 32 and previous programs is emulation.
I'd agree that 32-bit editions of the OS can be retired, but support for Win32 applications, whether 32-bit or 64-bit, is not going to be removed any time soon.
Instead Microsoft will make it easier for Win32 developers to use the UWP family APIs in Windows 10/11 - this was announced last year as
'Project Reunion', which aims to
merge Win32 and UWP into a single unified platform, to be released by end of 2021.
The latest addition to the roadmap is a new
'UWP Windowing' API which will integrate a low-level USER32/GDI32 emulation layer with the updated UWP 'AppWindow' class, making it essentially UWP v2. The Register has a nice roundup of this proposal:
https://www.theregister.com/2020/09/01/microsoft_windows_windowing_api_project_reunion/
Also 64-bit Windows (x64 aka 'x86-64') supports 32-bit x86 applications natively with
the WOW64 layer, so there is no need for an emulator (unless you are running on ARM64 version of the OS).
MS has a ton of baggage in windows that is keeping it from competing with more modern OS
That 'baggage' is the entire
KERNEL32 and large parts of
USER32 APIs (including
DWM), and relevant kernel-mode services. The 'modern OS' (aka Windows Runtime / WinRT / UWP) is implemented on top of these 'legacy' parts of the
Windows API (unlike
OS/2 subsystem and
POSIX subsystem of the past, and the current
Windows Subsystem for Linux, which use the '
native API' ).
they are also going to go heavy into sand box mode where everything you run is done in a sandbox so you don't get viruses or malware
That was supposed to be Windows 10X, but thankfully it was shelved. Forcing access restrictions on existing desktop apps would result in degraded performance and multiple UAC elevation prompts.
Apple just proved that in the course of 4 years you could kill 32bit program support then kill x64 support and everyone will buy your new processor and claim its the second coming
Thank you very much, I'm fine with Windows 10 running smoothly on any entry-level desktop PC from year 2011 (with only a little additional effort of
upgrading to a NVMe SSD disk).