Exactly, a current UI would be far from optimal on 30 years old hardware. Furthermore it would look alien, not in a good way, even if Windows 10 would probably feel old fashioned to us in 1995, because of the flat look that was forced when hardware was more limited in the 80s. It's almost a Windows 2 with a few more colors and less borders. Check this site for screenshots https://guidebookgallery.org/screenshots/win203