Yeah, I was going to say this is like the worst-case scenario for the average user.

One of the benefits of the main Arduino line is it was very simple to convert to your own design. Companies like Broadcom and Qualcomm won't sell (many of) their chips on normal distributer sites.

Same reason why Raspberry PIs kind of suck in my opinion. Great you've come up with a neat thing you want to build with it; you are forced to utilize either their compute modules which may not be sufficient for your task, or might be out of stock, or XYZ.