A new place for "screen share" / "remote assistance" / "remote login" GUI
Currently, gnome-remote-desktop is configured via the "sharing" panel in Settings, where one flips a switch, sets a password and so on, and then there is a VNC URL/host:port to copy paste.
However, there are plans to remove this part of Settings, and to not be completely without a intuitive way to start sharing your screen (be it for remote assistance or accessing your own session remotely), this interaction needs to find a new home, and likely new designs.
One idea that has been floating around is to make it part of Connections, the remote desktop client application. How it'd behave and look, as sharing a screen is very different from accessing one remotely, is not clear, and it is unlikely that it'd share much code, as none of the client side remote desktop technologies (gtk-frdb, gtk-vnc) would be used by the server side part - which would likely mostly be managing the gnome-remote-desktop systemd service, configuring authentication etc. On the other hand, having "all things remote desktop" might be beneficial, e.g. for discoverability.
An alternative is to just make it a separate gtk4 application; either isolated part in gnome-remote-desktop (similar to how the Extensions app is part of gnome-shell), or as a separate repository.