Hollywood depictions tend to lean towards one of these two extremes: glorification or demonisation.
Rarely we get to see a stoic, naturalistic depiction of the film industry. And I would argue that A Star is Born is quite pro-Hollywood. Yes, we see an example of Norman Maine, who was discarded by the industry, which led to his tragic demise, and yet, the ending of the film shows us an optimistic idea of the future of Hollywood led by devoted and hardworking actresses and actors.
I still think the film has quite a solid foundation for critical view on the film industry, and yet the tone of it, and the way a lot of problematic things are just swept under the rug, are tricking the audience into thinking that the good in the industry still wins at the end.
And even if it is the case sometimes, there is still a lot of things to fix. Even today, 87 years after the film’s release.