Indeed, there are a great many trade secrets in the RF business. However, I expect all this to level out in the coming years. Physics provides a limited spectrum, and the unlicensed and licensed sides in this are already squabbling over what spectrum there is, because all the useful bands (<=6-7GHz) are now allocated, somehow, to one side or the other.
The Wi-Fi people understand this: Wi-Fi 7 already covers all the unlicensed spectrum that isn't still being squabbled over, and even some that is. Wi-Fi 8, therefore, doesn't deal in new spectrum—there isn't any to be had—instead focusing on refinements that improve efficiency, contention, stability, security, etc. That's all great, but it also belies the underlying reality that the future of Wi-Fi, Bluetooth, et al., at least for mobile applications that have any useful range (there are much higher frequency bands, but the physics of attenuation limit the value of these,) is limited by spectrum.
So in the near term, all the players are going to max out the performance that physics allows in the spectrum available. It's a natural cork in the development pipeline. Notice, in the summary, the mention of MediaTek. That's a fabless Taiwanese company, ranking among the Broadcom's and Apple's of the world. They're all running up against the limits of physics and they'll all eventually achieve parity with one another as a result.