First go with the A7III on native glass as hired the 70-200.
Big learning curve over both the Canon and Fuji cameras i have used with a few things i love and a few things i hate.
Really need to get my hands on an A9 for a play as although i love the dynamic range of this one the A/F struggles still with bikes and the slight lag on the EVF in use and turning on is a pain.
Still trying to work out if its worth selling up all the Canon gear for a move over as although i am stopping covering BSB i will still attend a few meetings to take images but love the weight saving the new 400 f2.8 would give over my 300 and 500 primes and pair of 1DX MKII's.