On the positive side, it’s apparently only a software problem, so it can be fixed.
Unfortunately Fairphone seems to be somewhat struggling with software development right now (see thread about security updates). Let’s hope they get a grip on that, the smartphone market is in the doldrums right now after having flourished during the Covid lock-down periods: It’s the time to consolidate the existing rather than making heavy and risky investments in new hardware.
The FP4 is a good phone, but it does have some “very annoying” (just to avoid saying “serious”…) shortcomings, the stock camera being one of them (stuttering calls being another).
I’m not a developer, but in my experience it should be no more than a month or two of work for a dedicated and capable dev team. All Fairphone needs to do is to allocate the required resources to fixing those show-stopper issues, and I’m fairly (no pun intended) confident they will, because in the Internet age bad press is commercial death. They should know this, AFAIK they are seasoned professionals.