I am using a first generation Wandrd Prvke that I got on sale. I have a GFX 100S. For my last trip, I brought it along with the 32-64 zoom, plus the 63mm and 30mm primes and a Leica Q2 monochrome. Extra batteries, a 14” M1 MacBook Pro, an iPad and a Remarkable 2 (for reading without distraction) plus a book all made it in. Your gear should be fine too.