I deleted the Walkie Talkie app afain today, it had used 55% out off 83% in about 6 hours, I know my watch were at 100% this morning and then in the afternoon it was only 17% so I checked what was using the power and that was the culprit, I had noticed over a few days that battery was lower than usual going to bed but today was crazy, don't know if it's related at all to getting Pie and One UI this morning on the phone but somehow doubt it would be