You can find lots of people talking about the missing matrix headlights in this thread.
2022 Q2 production Model 3 missing matrix headlights?
It's a supply problem. Parts from some supplier just aren't being delivered to Hella, so Hella can't build the lamps, so Tesla can't install them. Meanwhile the supplier of the simpler headlamp is able to get all the parts they need and cars are getting those headlamps instead. The simpler headlamps are very good headlamps. As observed in the linked thread, those who have the matrix versions may never see them enabled because Tesla is busy with self-driving and they haven't been applying themselves to tuning other things like automatic wipers, automatic headlights and so on. Further, by the time they get around to working on the software, they may have moved on to another, incompatible, headlamp.