What are folks’ preferences for tuning radios? Personally I use the CDU almost exclusively (I’d rather type than twist) except for setting the xpdr to active and ident.
I despise the stacked twisty knobs in the sim on GNS GPSs (one of the reasons I replace GNSs with GTNs wherever possible), and by extension the RTU. I suspect it's not as big a deal in real life.