That’s just ridiculous because MSFS is groundbreaking in so many ways. If you know of any other MIMO app or game that doesn’t live sync using a single main thread then perhaps you’d like to share your knowledge?
PS. Even in MSFS with system and addons DX12 can easily use 8 cores or more but it’s a fact that currently only one is dedicated to mainthread. Who knows for the future but if it gets split it will also be groundbreaking.