I agree with the sentiment of the thread, I just think the title is deceiving, or distracting from the real issue.
Now I like Bruno, just bought a shirt with his name on it last year, but he will be an issue for United moving forward. Discussing whether him, individually, is preventing us from winning the league is pointless, because we aren't winning the league anytime soon for myriad reasons.
What the real issue is is whether or not Bruno will suit an Erik ten Hag system, or the type of football he would like us to play going forward. I think he's done a decent job as captain, and we had some great results, but we aren't playing ten Hag ball yet, we are setting up in a low block and hitting on the break, because EtH has chosen to solidify the defense and build from there. This has given hope that Bruno can keep his place and thrive under EtH, but it's false hope, right now playing defensively and hitting on the break suits Bruno, it allows his to make his hollywood passes and wild shots, because it's happening in a quick counterattack.
However, when EtH tries to move to a more possession based system is where Bruno will be exposed. As OP stated, he doesn't retain possession, he doesn't receive the ball, take a moment, assess his options, and make a pass, or dribble forward, what he does is receive the ball and pass it on or shot it all in one quick motion. You can't set up passing triangles when the top of the triangle hoofs the ball forward whenever he gets it.