In what way? Tahoe's UI SNAFU aside, it seems like it's basically just a more polished version of the older macOS versions from a decade ago.

I run into bugs every day. It wakes, and has a black screen not wallpaper. Change spaces and the focus is wrong for half a second. Login screen is a pain because it collapses all users together. Notifications don’t scroll if they stop scrolling when the cursor is over a gap between them. Something on the system constantly eats disk space, and I think it’s the system updates. If I dock two apps in one space, sometimes one is black. If I zoom out to the Spaces overview it shows fine in the preview though. In the Terminal if I close a tab it can focus an entirely different window.

I could go on for hours. It’s a buggy mess these days and I miss Lion and Snow Leopard desperately.

For all its faults I do still like modern macOS, but it is a far cry from the beauty that was Mac OS X 10.6.8 (Snow Leopard).