Actually, if people are willing to set aside the conspiracies, the cause seems more like AMD not having anywhere near enough supply to actually put chips inside laptops en masse.
Perks of Intel owning their own fabs is that they can scale up/down as they choose.
AMD has to get TSMC allocation, priority to server chips, then everything else.
AMD laptop CPUs being "launched" and consumers struggling to find laptops using them in stock is a very common scenario, for this reason.
What you guys are talking about may have some impact I can't say for sure, as with most vague allegations, but logistics is firm data.
Quoting 20 year old examples as proof of things happening today isn't exactly compelling IMO.
Meteor Lake is slower than Ryzen 8000 series in many, many benchies. It has no advantages over Ryzen APU w/ NPU yet sells 5:1 over AMD.
The advantage is you can buy them. Intel also provides excellent OEM and software support.