I was wondering about that. I lost my iPhone 13 mini the other day, did the find my phone beep thing and got a distant beep from my washing machine which was on wash cycle.
Surprisingly the phone was fine and works fine after a brief rinse under the tap. It must be hard to combine that sort of water resistance with easy user changing.
Don't fall for the 'glue cuz of protection' myth - there are and had been water-resistant phones way before Apple started glueing to avoid customers doing their own repairs and them losing out on new sales.