In some ways, the bugs are part of the charm. Sometimes anyway. Having to run esoteric commands to fix broken quests in a years old game isn't so endearing.

True! On the other hand, performance appears to be quite bad and there seem to be tons of very obvious visual glitches with transparent objects, foliage etc.

It using the UE5 renderer of course means the usual reservations of that engine also apply - it will most likely never run smoothly, as Unreal Engine games invariably have more or less severe stuttering.