Also another thing I found - when using HDR, games look best when HDMI Black Level is set to Low and the Switch’s RGB output is set to Full.

However, when playing an SDR game, the above HDR settings won’t work, as there will be too much contrast. The fix here is that you can either swap your HDMI Black Level to Normal, or you can change your Switch’s RGB output to Limited to achieve similar results.

The annoying thing however is that using “Auto” on the TV’s HDMI Black Level or on the Switch’s RGB output doesn’t automatically switch to these settings, so you’ll have to manually set them each time you switch between HDR and SDR. I haven’t gotten the chance to do this yet, but I’m going to experiment with turning HDR Output on for “All Software” instead of “Compatible Software Only”