- Whatever you decide upon, I’d suggest waiting until November before making a purchase. By that date we should have much better official guidance on PC specifications, plus with a bit of luck the PC will cost less during the November sales period. Your two options do not appear to be “budget” PCs, so making sure that whatever you purchase is right for MSFS 2024 would justify the delay, IMO.
If not already, please be aware of the current issues with intel CPUs:
Waiting until November might also ensure that proposed Intel fixes & BIOS updates do indeed work.
I agree with @CasualClick w.r.t storage. Having the OS & Apps on separate disks makes backup & restore simpler. 