Thanks for the explanation. As it happens, one of my irks about the Windows version of Transmission is that it doesn’t remember the position of the torrent-properties window. I want the list on the left, the details on the right — particularly since Transmission reuses the details window, essentially treating it as a pane. This worked splendidly on MacOS.

macOS are even worse in this regard IMO. Everything is just totally inconsistent

Why do you mention macOS if you haven’t used it?

Hold on, so I can’t run Transmission that has the torrent list in one window and torrent details in another window? Only one single window per app? What insanity is this.

Every app I know opens a window for the preferences, how is this solved in Wayland? Even just the typical Explorer-style file manager requires multiple windows to function. And of course, I always have a dozen Firefox windows open.