Better bandaids won’t help, even the waterproof ones don’t stay on fingers. Just too much folding and bending to ever get a good seal on your finger. Liquid skin might be the only answer.

I use medical strapping tape. It has many uses. When wet it moves around a little, but once it dries again it sticks in place.

Elastoplast has some good bandages that tend to stick on in water more often than not.

Staples and super glue wont move and you can be getting blasted by a riot control vans fire hose.

The cost of medical supplies is political