AMD appears to have hidden and then reinstated a blog post from June 2020, where it derided graphics cards with 4GB VRAM. It claimed at the time that such a small amount of memory was "not enough for todays games." That's apparently no longer true with today's Radeon RX 6500 XT (4GB) launch.
AMD Deletes, Republishes Old Blog Post Deriding 4GB GPUs : Read more
AMD Deletes, Republishes Old Blog Post Deriding 4GB GPUs : Read more