I don't know if it's nostalgia, but it's interesting to see older programs and feel that they were more interesting than today's ones.

Like this Windows Media Player screenshot, which basically Spotify interface if you think about it.

https://en.wikipedia.org/wiki/Windows_Media_Player#/media/File:Windows_Media_Player_12,_under_Windows_11.png

And yeah, I think is partly nostalgia, because I did used computers at that time, and I didn't used WMP actually, just straight opened mp3 files directly.

The UI design though... good times