Anyways, here is a port of #Sessions (on the left - GTK/libadwaita) to AppKit/macOS 26 with DarwinKit (Golang, too!). Pretty damn close, but there are def. differences around margins, the size of buttons etc. between macOS and GNOME for sure.
The macOS app feels “at home” in a way the GTK app doesn’t. macOS also has a nice menu bar ecosystem that while somewhat emulatable via the background portal just isn’t quite the same as on macOS!
Also, for good measure I made a port for macOS pre-Tahoe (so no Liquid Glass). Looks quite a bit more similar to the GNOME version!
And just for reference, this is how the app looks like on #GNOME (I prefer this to the native macOS app honestly once it's in it's native habitat)