"The AMD Polaris and Vega graphics architectures are mature, stable and performant and don’t benefit as much from regular software tuning. Going forward, AMD is providing critical updates for Polaris- and Vega-based products via a separate driver package, including important security and functionality updates as available. The committed support is greater than for products AMD categorizes as legacy, and gamers can still enjoy their favorite games on Polaris and Vega-based products."
Sounds like there will still be some driver updates for AAA titles if I had to guess.
It's the best value in terms of raster 4K performance. The 4090 is being scooped up for AI-Tasks, and actually has gone up 10% in price. The 7900XT and XTX will age well, no doubt.