That said, nothing stops a 32 bit VS building/debugging a 64 bit process. I was doing this 10+ years ago.
MS doesn't support running VS at all on Linux/Mac, and probably won't ever, or for a very long time out. Use VS Code, instead. Yes, you can target Linux/Mac from Windows running VS, but VS wont run on the same OS.
https://blogs.msdn.microsoft.com/ricom/2009/06/10/visual-stu...
Is there some reason you would expect a 64-bit Visual Studio port before a Linux port?
The only advantage I can see to staying 32-bit is that Windows on ARM64 only has an x86 emulator, not x86_64.
I think there’s a 0% chance of a Linux port: VS Code is the cross-platform/future dev environment for Microsoft. But I wouldn’t be surprised to hear that a 64-bit Visual Studio is coming soon to Windows.
I think it's just the C# code editor process that's still only 32-bit.