Good practice but RDP should automatically not be showing the desktop background anyways (depending on RDP settings). You could also set a desktop background if you like and manually tell RDP to never show the background of the system your connected to.
I push down a solid color background w/ Group Policy everywhere I can.
re: the RDP client settings - I can certainly control that. I just usually forget to. The default "Experience" setting for Microsoft's RDP client is "Detection connection quality automatically" and it has a much more optimistic view of "connection quality" than I do.
