This observation could easily be explained by brand loyalty and other market forces.
Why did Intel sell more of its objectively inferior 10th and 11th gen chips than AMD Zen 2? Because they have more brand loyalty, partnerships, sales channels, etc.
Sales volume != product quality
On top of that, it's easy to imagine two different cards from fabricated by two different factories having much different levels of supply constraints. If Tesla runs out of chips but Toyota doesn't, the lack of Teslas can't on its own imply that Toyota is a making an inferior product.
Why did Intel sell more of its objectively inferior 10th and 11th gen chips than AMD Zen 2? Because they have more brand loyalty, partnerships, sales channels, etc.
Sales volume != product quality
On top of that, it's easy to imagine two different cards from fabricated by two different factories having much different levels of supply constraints. If Tesla runs out of chips but Toyota doesn't, the lack of Teslas can't on its own imply that Toyota is a making an inferior product.