That person’s gonna be very rare, while lots of over-25s have that experience.
Today’s OS are aesthetically pleasing, especially with the right combination of windows, but using them is a frustrating experience.
I don't know about. All the different apps and OS windows are so inconsistent with each other. There is not much sense of an overall aesthetic. Just a mishmash of vaguely similar styles.
Also, there's simply the reminiscing back to the era when these were out. When they were NEW, and revolutionary.
All things that cannot be conveyed from a static screenshot.
Consider NeXTStep. Something you cannot see from these images are that when you moved a window on NS, the entire window moved. Not a frame, the entire thing. This was not normal in the day. Or that NS used Display PostScript. "Not only are they moving the entire window, they're using DPS to do it!" PostScript was powerful, and expensive, and for printers. Yet, here it was.
Or how fast BeOS was, and its cool filesystem, and other aspects.
It's certainly an interesting question to ask folks that have opinions simply on the cosmetics of the various images that we see here, but appreciate that for the folks that "were there", at least for me, I'm not just remembering what it looked like, it's much more than that.
I will never forget when the Mac first came out, my friend and I went to see one at a computer store. And my friend just sat there, mouth agape, moving the mouse back and forth across the menubar, seeing them popup and popdown as it moved, and just going "Woooowwww".
That was a factor of available memory bandwidth to the framebuffer. Single-frame updates are something that only became definitely possible around the late 1990s to early 2000s, and that depending on what resolution and color depth you were running. High quality display settings would initially be quite slow to update. In many old PC games, full-screen displays would visibly update with a smooth windowblinds effect. You couldn't do any better than that, because screen updates were dog slow.
1993 PowerBook 145B (25 MHz 68030) https://www.youtube.com/watch?v=4cQo29SIIgU
1994 PowerBook 540c (33 MHz 68040) https://www.youtube.com/watch?v=peWIysrf7DY this one is a bit chunkier in the video recording than real life since enabling the external video visibly slows the graphics down