what u need to make a duel water land mob

so i have heard all the fixes before of also make your land mob a water mob too yes u can do that but when u do that the mob loses its land navigation and movement speed which is not a fix just make the issue the opposite angle of no its water bond. if u don't make it a water mob it just sinks and become a crab pretty much  stuck to the sea floor 

the easy fix would be to create is entity pushed by fluid condition, cause the land mob doesn't need the water navigation it seems

and if u have found a work in 2023.1 version pls show pics of in game example and build example  cause i've gone cazy that each written example of working claims are just so simple