I hit this roller coaster at least once a week 
. I’m going to try my very hardest to never go back.
In case it’s relevant to you, I had some issues getting some games to leverage the dGPU. The thread is here, and the tl;dr is I had to set the startup command for the game in steam to be “DRI_PRIME=1! %command%” (The bang “!” is the important part). Not sure if this is relevant to you, but this helped keep my linux dreams alive!