The availability of the RX 6000 XT is comparatively good. Even after the release date, graphics cards are listed at affordable prices. The allegedly good mining performance of the RX 6600 XT with Navi 23 GPU almost seems like a threat.
According to tests, the Radeon RX 6600 XT achieves a decent 28-30 MH/s with a consumption of 90 watts without tuning and changing the clock rates. With some fine-tuning by lowering the GPU clock and raising the VRAM clock, 32 MH/s at 55 watts (GPU ASIC power) should be possible. In the YouTube channel of Dizzy Mining, the graphics card was examined in this respect
However, the actual consumption is probably higher and the readout only shows the pure GPU power. With more consumption, the RX 6600 XT would remain a decent efficiency in terms of Ethereum mining, although not as outstanding. However, the mere prospect of that could have a negative impact on availability due to the sensitive market.