In order to soft decode YouTube in VP9 2.5k @60 fps, a 4-core processor from 15 years ago is enough.
And there are many old computers that are quite relevant for office work and surfing, but for which there are simply no hardware decoders VP9/H265/AV1 (8k+ on YouTube)
All these old computers need an extremely energy efficient video card (10-15W), which allows smooth output of 2.5k-4K@30-60fps from YouTube and other sources for maximum video quality even on fhd screens (since the higher the video bitrate - the higher the quality of the picture, and Google deliberately cuts the bitrate at 1080p (especially with the introduction of a paid subscription, they themselves admitted this last year) resolution, and even at 1440p artifacts are noticeable due to the obvious lack of bitrate per each pixel of the fhd screen.
But no one issues such cards. And the old cards are gradually failing. And people have nothing to buy in return, while they cannot update the hardware either because of money or sometimes out of a fundamental desire to run, for example, WXP for some features that are not in Vista+.
Those who have new hardware with igpu, of course, hardly need such poor cards that are of little use for modern games and, moreover, waste energy in the system.
But the owners of hundreds of millions of old but still quite usable computers would be happy to buy an energy-efficient discrete card of a modern level for up to $50-70 with all modern decoders and fast vram sufficient for their operation. What is missing is the pitiful scraps that fill all the shelves like the NVduia GT710-730 - which are not even capable of smoothly playing 2.5-4k@60fps, even with successful software decoding of VP9 by the processor. Their memory is too slow for this - a pitiful 8-14GB/s, despite the fact that the average cards even in 2008 already had 60GB/s+.
What is typical is that there are many fewer entry-level AMD cards on the shelves, especially older ones, than NVidia, although they have a special advantage on wide gamut monitors (auto-calibrator in sRGB).
There really is a shortage on the market of a compact discrete card with minimal consumption, not intended for games, but with all possible hardware decoders. But none of the three video card manufacturers will make this using new technical processes with maximum energy efficiency. After the mining scam, AMD/Nvidia became so impudent with prices that such niches became uninteresting for them. And now they have added a new scam with "AI", so they can completely abandon the market of even mid-range video cards, leaving the production of only top-level chips to the remnants of the "middle class" on the planet, which is still able to pay $1500+ for such a card. ..