How do I find settings when I'm locked into Grid View, List View, Edit Apps
How do I find apple watch settings when the watch is stuck on Grid View, List View, Edit apps?
Apple Watch Series 6, watchOS 9
Force restart it
i.e. press and hold both the side button and Digital Crown for at least 10 seconds, then release both buttons when you see the Apple logo.
Then, although it may seem irrelevant, while it is restarting Force Restart the paired iphone Force restart iPhone – Apple Support (UK)