This is exactly it, a lot of apple framework code under the hood is not safe and you don't notice it most of the time, but you get users reporting it and maybe

This is exactly it, a lot of apple framework code under the hood is not safe and you don't notice it most of the time, but you get users reporting it and maybe reproduce it intermittently once a week if that. Most apps are not as intense as ours, they are web app equivalents that just do a few http calls and display form data. Our app is pretty intense with gpu background jobs, image queries, ai models running, local db modifications and network uploads occurring, which is way more of a concurrency stress test than most. It acts like a local only desktop app with some optional internet features. It’s the observability blocking that is the worst part. If we could observe deadlock states then it wouldn't be as bad.