I know of a Rov who personally davened ashkenaz. When he took up a position in a shul where they daven sefard he switched: “Hashem understands all nuschaois, so I may as well daven the same as everyone else and not get confused”
Overheard: Some say baruch she’amar before hoidu, others say hoidu before baruch she’amar, but they all say Yehi Chevoid le’oilam in the same place, I.E The main thing is we give kavoid shamayim and do it lishma!!!!!!