We can get an unrealustic view of PC gaming on these enthusiast forum. Tge vast majority of PC owners are not running even a 2060 Super yet. Game makers do cater for the lower-end (high streer pc) scene. To do otherwise is business suicide.
As you say, most of PCs end up with a low-mid range GPU, that is, a 50 or 60 series if we talk about nvidia cards really. For a brand new PC, this would mean going either for a 1660 super or 2060 super, as you said.. However, you can't really find any of that at all at the moment... I'm not even talking about the 3000 series, I'm talking about not being able to find a 2060, 1660, 1650 super, 1650, or even a 1050Ti anymore. This can only mean one thing really: PC enthusiasts, or people who would normally have no problems spending 500£, for argument sake, on a GPU, are not being able to buy what they expected and are buying even lower end GPUs than they would in normal circunstances, or at least were, because you can't really buy anything at all at the moment.
That was actually my case. I was considering buying a 3080 initially, as I was quite interested in getting a VR set, then decided a 3070 would be enough as I couldn't buy one of these, and finally decided I would go for a 3060Ti as I wasn't able to buy anything at all... I'm still using a 770, and I might decide to buy a 3050 when they come out, at a normal price and if I can buy any at all, that is... The problem is that there are many people just like me, and I'm still able to play most games at 1080, but there are a few now, that my PC struggles with... I normally play one or two hours a day after work, maximum, so I'm not considering paying 1000£ for a GPU with a RRP of 400... just not gonna happen. And it will get to a point, when I won't buy any of the latest games because I won't be able to play them even.
I just don't undestand this strategy on the long-term really. Having clients who were willing to spend their money and buy a medium-high end product from you buying entry level products for a quarter of the price instead, and probably hurting sales on the long term as well, doesn't make much sense to me. Especially if you're not benefiting from it, because scalpers and maybe retailers now are the ones who are actually reaping the benefits of this situation... unless they plan people to move to services like Geforce Now on the long term, that is... however I see that as a very risky move as well, taking into account they don't have any competency selling GPUs, apart from AMD, but there are a few other companies selling similar services as Geforce Now...