Even when angled, pretty much anyone can oneshot. It’s basically the same as bringing a reserve destroyer into a 6.0 game.
You get focused straight away because all it takes is one hit within 6 miles of the magazine and it just blows up. I’ve never survived more than 2 minutes with Yamato.
It’s broken and simply doesn’t work. Either fix it or drop it’s BR because there isn’t nobody overperforming in this. Literally the only hope you have of having any success is pray that everyone else just ignores you.