How can you have a David Bowie Biopic, and not have any of his music in the film?

I came into this with no expectations. I like David Bowie but I'm not a huge fan who knows most let alone all his music. So I wasn't watching this knowing everything about him and his music. But I actually expected some of his music to be in this, similar to Bohemian Rhapsody. This movie was boring and I found myself playing on my phone just waiting for it to end. All in all, I feel like they did a disservice to David Bowie, making him look like an idiot obsessed with becoming famous. They tried to add something deep by adding him being afraid of becoming like his brother, but it actually fell flat. There's a concert scene at the end where he finally goes on stage and the actor had zero sparkle or pizzazz or showmanship where David Bowie on stage had all of this. He literally looked like he was just laying on the stage where he's supposed to be making fierce poses. And I usually like Jena Malone but she had the worst accent in this (and wig and eyebrows) that I just couldn't stand her character. I don't think anyone making this movie recalled that she was American. Curious if the real Angie Bowie had gotten a British accent, I looked her up and she doesn't have one. So why did Jena Malone do the worst British accent in history?