Also someone with a slightly different setup, CFX55im, 30 Ah (384wh) LiFePO4 battery, 100w panel. I have an image of the setup in my build thread
I ran my test on the patio (in PHX) with 2 gallons refrigerated water (refrigerated load), opening the 55im several times during the day to simulate actual usage. ~90F day ~65F night. Over the course of the 3 day weekend my battery (much smaller than your setup, but then the fridge is too) was charged and in float mode by 1030 each morning.
9 day trip in Idaho and similar results, sunny to partly cloudy a couple days, flat 100w panel, same battery. SCC said it was in float mode by ~1100 each day. I ran my Starlink off Ryobi 18v batteries and charged them via usb on the same setup. I have LED lights in my GFC but those draw so little current.
The CFX fridges are pretty good at efficiency, but yeah do a test on with the setup, put a bit of chilled mass in the fridge to mimic what you would be using and just see.
I really want to see if I could/should run the fridge off usb-c PD. The input says it will take 24v, so yeah, that would be cool. But, I have too many other projects bouncing around in my head so I probably won’t get around to it since it works substantially adequate.