You must be lucky because I just did exactly what you just said and it
didn't work. The remote did go back to V22.2 but the continuous up/down
volume did not work. Updated it to the latest version and it still did
not work. No idea.
So listen to this. I have many 4k chromecasts in my house. The one on
the main floor started acting up (putting a green line across the bottom
of the tv when using Plex and Emby) and it crashed a few times so I
decided to swap it out with another in ...