By the time you’ve written this Doomfist was already back on track. They ninja-fixed the “crashing when near a wall” thing as well as a few others. ( Overwatch 2 Known Issues - March 15, 2024 )
After finishing half my ranking games across all roles nothing changed if at all, but weirdly enough I am having fun playing ranked so far.
I still think the hitboxes are too big but the other changes (hp, healing, passives) seem okay. The biggest problem I still see is Wrecking Ball being completely contradictory by design to what the new playstyle demands (dive vs hide and peek), but if he hopefully gets a rework I am pretty much sold on this, I guess.