The Samsung Galaxy XCover6 Pro has a replaceble battery while being IP68 dust/water resistant, which means it can be submerged in water up to 1.5m/5ft for 35 min. It’s definitely possible, but they just don’t want to make such phones apparently.
ETA is also used for Edit To Add
I really hope Fish was just a typo there
No, public like owned by investors who bought stock and want profits.