Connection to Server via SSH

Hello community,
using v24.2.1.2 (X86_64) on macOS 13.6.4 I’m trying to connect to my server… Actually not rocket science… but I don’t get it working… I checked everthing repeatedly… server, port, user, pass, root … allthought all fields are filled properly, the “open” button is not active/cklickable.
Could someone please give me a hint what I’m missing?
Thanks and best regards

As explained in bug 98723 comment 5, the functionality depends on GNOME gio library; so it is not implemented anywhere except Linux.