I can name features, but everything I can think of are technical features rather than obvious surface level stuff: DX12, better support for SSDs (Windows 7 doesn't natively support TRIM), HDR (I guess, but it still seems broken to me). And none of these are things that couldn't be implemented in Windows 7. The UI has nothing to do with these things, and there's no reason we couldn't have them without the trouble Windows 10/11, other than the fact that MS doesn't want to do things that way.