No conspiracy.
As has been pointed out, the CA store is not getting supplied with the same stock as the other stores.
The CA guns are different than the ones for the rest of the country. The low cap 10 rounders for one. They are very specific models, which were approved "safe".
The CA approved version may have extra safeties such as a magazine disconnect, which may not be obvious when looking at the model in another state.
Also, the manufacturers are catching up on demand. If they are trying to fulfill orders, when they have the production line cranking, which do you think they are going to do, crank out a bunch for a specific market, or are they going to crank out the ones that can be sold to the rest of the nation?
Once they have the rest of the nation supplied so to speak, they can then go about retooling production lines for specialty orders.
That's another reason why CA guns often have like $50-$100 mark up compared to what others are paying.
Have a little more patience. From the sounds of things, the inventory for the rest of the country is normalizing.