That is essentially what many of us deal with, however sporadically. Something that crashes seemingly randomly can be fiendishly difficult to diagnose. If you can’t point to a thing, and declare categorically that it was the cause, you cannot say for certain that removing that thing has fixed it. You might fly for a month then suddenly get a crash, and you are back to square one.
Early on last year, I did two things that improved stability, but it was entirely on guesswork.
The first was to entirely disable rolling cache. The advice after installing patches was to clear the cache down, with the theory being that cached terrain might clash with updated streamed terrain, and cause instability. So rather than faff around with that all the time I turned it off.
The other was to related to the 530, and 750 addons. Back then I was flying with the JF Arrow a a lot, which was the only plane at the time you could dynamically change cockpit layout from no GPS to having either of those addons. It became apparent that there were some issues with those addons with relation to airspace notifications, as well as the number of map pages you could have, and the advice was to not flip between two GPS’s. IIRC without state saving, you had to flip from one to get to the other. So I decided that if I was going to fly the Arrow I would only have the addon I intend to use linked, and I would flip between them external to the sim before I load it.
Those two changes made a huge difference, as I was crashing a lot back then, and I maintain that stance today, even though I haven’t flown the Arrow in 6 months or more.
I also had an incident where I believe LNM, and its flight tracking was causing crashes. I switched to only using LNM for flight planning, not tracking, and stability was again restored. I went through a period of about a month with no crashes, and on the one occasion I turned flight tracking on, and forgot to turn it off, when I was circling the airport during a big group flight, the sim crashed. Was it LNM? Who knows, but it looked like it.
I don’t use any external flight tracking now, and still occasionally I get a crash. It’s rare, but enough to be an annoyance as it’s almost always at the end of the flight as I am getting ready to land.