It certainly runs 16-bit Windows games better than Windows 11, which can't run them at all. Not that there are a ton of those, but it's still pretty neat that they work.

Anything Direct Draw related will be mapped into OpenGL under Unix giving you decent speeds. On Windows it will be a crawling slideshow because from Windows 8 and up it will use a really dog slow software mode with no acceleration at all, worse than plain VESA. Yes, you can reuse WineD3D DLL's on Windows and run these game in a fast way, but not by default, it's a Win32 port of some Wine libraries.