How Total War: WARHAMMER III runs on the Radeon RX 6600
Our estimate puts the Radeon RX 6600 at about 90 fps on High at 1080p in Total War: WARHAMMER III, which means it runs comfortably. On Low the same card manages about 171 fps, and on Ultra about 65.
The graphics card is the limit here, so lowering the resolution or the quality preset is what raises your frame rate.
For a steady 60 fps, our estimate says: 1080p: Ultra (about 65 fps); 1440p: High (about 65 fps); 4K: Low (about 68 fps).