At Microsoft this eventually became a feature: Application Compatibility Database
https://learn.microsoft.com/en-us/windows/win32/devnotes/app...
At Microsoft this eventually became a feature: Application Compatibility Database
https://learn.microsoft.com/en-us/windows/win32/devnotes/app...
Having MS design Win95 with specific hacks for SimCity means that MS thought that SimCity was special and important, which reminds people in that era that they also thought SimCity was special and important -- and it's mildly or moderately interesting enough for these people to find "behind the scenes" work which validates their nostalgic memories.
https://devblogs.microsoft.com/oldnewthing/author/oldnewthin...
Microsoft had a program internally within it's development teams for Windows 95 that you could get any software for free. You just had to agree that you'd ensure it was compatible with Windows 95 and take ownership of its quirks to get it to run on Windows 95.
Per wiki, they released "SimCity Deluxe CD-ROM" for Windows 95, so the game was obviously still selling well even then.