I don’t know where in history it became unacceptable to let out a grunt while lifting weights or to drop your dumbbells on the floor. People working out are loud, it’s not your fucking privilege to have a low decibel level in a gym. Even if I was screaming, who is it hurting? Gyms should be expected to be more of a loud environment. Silence should be the exception not the norm, people who want silence are the minority and they should have to schedule their quiet times in a manner that doesn’t interfere normal every day gym goers.
Yeah it's pretty silly most of the time. You will end up making some noise just to have good breath control (an underrated part of lifting!), so I understand that. And if you're doing Olympic lifting with bumpers, of course there will be some noise from that (but still not screaming, lol). But most of the time I think it's folks just getting into a toxic bro mindset about what strength training is.
My high school gym teacher had the state record for deadlifting and what quiet as a mouse when lifting.