Why don’t you deactivate the asking of start/ended workout? And just lock the display during wet workouts and pause/start the workout with both buttons instead? Works perfect for me. I run I all weathers
I didn't know about the deactivation of asking of start/end. I will switch that off right now!
The display being locked, at least in watchOS 8 didn't seem to stop it futzing out. I was doing that. One of the problems is I tend to layer up heavily. I'm not talking about hiking in particularly nice weather - it's got to be cold and wet to be fun for me. The last really nasty one I had a long sleeve base layer, fleece and hard shell over the watch. On two separate occasions on the same hike, the wicked up moisture made it go crazy, unlock and then drop out of workout mode.