I mostly don’t use the physical remote for my RXA2060 or RXA770 or RXV681. They don’t get used much.
My firestick 4K physical remotes have the AVR volume programmed and TV and AVR power on/off together. (Most importantly my long haired boss can use it).
My iphone remote app can do everything else, which mostly is just changing back and forth from DSU Upmixer and Straight Modes. I also use the iPhone remote apps for firetv and Apple TV which work well too.
The Sony UHD/Blu-ray remote app is not very good. I use the physical remote. Maybe someday they will improve the Sony app.