MSFS has always been buggy since FS for Windows 95, the first one that I played. Ask other seniors who probably had one in Amiga or Commodore machines. SimCopter also crashes very often, but games were very simple back then. It is very well-documented why it crashed, and people tend to avoid it.
Flight Simulator has always been the cutting-edgiest “game”, given its nature as “open worlder” and its ambition to represent the entire planet earth in the best computer graphics representation a possible. That ha been Bruce Artwick’s mission. Not even Elder Scrolls II: Daggerfall or Heroes of Might and Magic series can compete with their attempt to make the entire world a “sandbox”.
There are many competing PC sim platforms, but the graphics is like this in mid 2000s:
Airline Simulator 2 (AS2) by Nomissoft - realistic, but look at that “2020s Captain Sim” paneling. Awful. But people who played with this understood that AS2 is all about flight dynamics realism: realistic flying behaviour and characteristics, realistic performance figures, realistic fuel burn, etc. So it is pretty much not a CS Boeing widebodies for MSFS.
Sim elitist mocked MSFS 2004 (FS9) and FSX (FS10) users that we are too “spoiled” by eye candy (graphics and effects) while flying on rails. Yes, it is true you can slap an FDE into a 3D model of a goat, and it might fly like a Mooney Bravo. But that’s the price we pay for immersion and fidelity. When I decided to go back to my flight simming hobby back in 2018, I bought XP11, and was rather disappointed at its slightly sharper FSX-style graphics. But that’s what you got for a proper simulator platform. And yes, it is not even a stable or predictable platform despite its graphical limitations.
It is unstable, crashes very often, produces janky result, and for sim purists - it is what you get for using a throughbred software - kind of like driving F1 car: it is pushing the boundaries of technologies available. It is understandably unreliable, not for regular users that doesn’t know what they are doing, it is a little bit dangerous as well despite the safety measures. For us, who are “modding” our MSFS platform like crazy, the risk is in our own hand if after 8 hours of crossing Atlantic, the sim froze and crashed while we are on short final.
To be a consumer in this era of this confusing post-information age, you need to be well educated and well immerssed in information processing mental capacity. Otherwise, you will have weird expectations, like those rich folks who boarded OceanGate submersible or Space Tourism modules. Those are “experimental” builds sold to overly confident and gullible crowds with money - don’t expect airline level of safety from such kind of transactions. You might very well not return safely, and that’s the risk that anyone should understand very well before going onboard.