Apparently you’ve never seen the MSFS marketplace since there are already nice military jet trainers.
Don’t know why you want to switch sims if you want to fly fast jets.
If MSFS is focused on GA flying, why are their three airliners and two business jets?
But you’ve partially correctly mentioned, MSFS if focused on FLYING, not falling.
What do you mean that you can’t simulate failures? Did you miss the failures menu?