Let's not exaggerate; I don't believe that any of these companies are paragons of virtue. However, Apple, Intel, and Nvidia are unarguably worse than AMD when it comes to anti-competitive tactics. As far as Alchemist's lackluster performance is concerned, it has nothing to do with drivers or the 4090 being top dog. By now, they have had well over a year to work on their drivers and they are much improved. Let's compare two GPUs built using the same process: the A770 and the RX 7600. The A770 has a die size of 406 mm^2 while the RX 7600 is only 204 mm^2. The A770 is almost twice the size of the latter, but it struggles to distinguish itself even in newer games. Overall, in TechPowerUp's latest reviews of GPUs with comparable performance, the A770 has lower average fps than the 7600 at 1080p. This is despite using 50% more power to render. Unlike AMD's Vega or RDNA 1, Intel didn't suffer from a lack of resources when they were designing Alchemist. The A770 clocks only a little lower than the 7600. Contrast this with AMD where RDNA 2 clocks much higher than RDNA 1. Given that instruction latencies stayed unchanged between RDNA 1 and RDNA 2, this suggests a lack of resources. Given all this, It would be a minor miracle if Battlemage managed to match the 4070.
I believe we have gone off on tangent. As far as this mod is concerned, it is good that owners of cards based on Ampere and Turing can experiment with frame generation and make up their own minds about its usefulness. It is also another example of why some people prefer AMD to Nvidia.
I would say that a possible reason for AMD not being in that position is that they have never had the market share to try. If they were the dominate platform and could, they probably would.
As for the Intel subject that is just the cherry picking of information. The A770 is not and has not been the card of best value by Intel, that would be the A750. Which has most of the A770 performance with a reduced cost. As seen in this chart in the review of the A580 for performance per dollar (which is an actual important metric) it appears the A750 is in a 24% lead at 1080P, 16% at 1440P, and 23% at 4K when compared to the 7600. The drivers are still being much improved, in fact from this article on TPU dated 01/24/24 certain DX11 games got a +268% performance increase, I would say there is still more headroom for gains.
I can understand when cost is a concern, however you seem to be focusing on efficiency and die size which really does not affect most people in any meaningful way.