For the Flight Radio Panel I downloaded the driver from Downloads - Flight Radio Panel – Logitech Support + Download, and then manually started the “Logitech Microsoft Flight Simulator Plugin” by searching for it via the start bar.
Manually starting the plugin should result in a process named LogiMicrosoftFlightSimulator shoving in the task manager.
More detailed steps described in Saitek panels? - #22 by Lucdre