I was also drawn in by the wallpaper, but I'm looking at your Linux Mint and thinking that looks more like (old) GNOME than KDE, is that KDE? That looks nice. I haven't used Linux in years now, and I always preferred GNOME for looking more like macOS, but if that's KDE (as Mint is known to use), I might have to adjust my preferences. (I also don't have a machine that can run Linux anymore.)