I already reported this (I think it started with 20.12 beta), in that version the sleep watchface remained after any sleep (so every morning I had to set the regular watchface again - on the watch, it was already selected, but re-selecting it did finally switch the sleep watchface back to the regular one).
In 20.19 this still keeps happening when exiting (eg. by interrupting) the nap = after every nap, I have to re-set the watchface.
