Any grad student who encounters academic dishonesty by their advisor (at least in the US)... First go talk to a lawyer. A lawyer of your own, not connected with the university (except perhaps as an alum). Not a dean, not an ombud, not the kindly professor who's a friend to all students, not that other professor who sounded especially forthright in class.
Ask the lawyer for a free initial consultation. Where you might find they're comfortable handling this situation, or they might recommend a better lawyer for it. They can also talk about how the costs would work for your situation. You can check out a few lawyers this way.
Once you have a lawyer, they can advise you how to approach the university, and/or approach the university themself, to protect you, and to get the harm to you fixed.
Getting a lawyer doesn't mean you can't work things out with the university, and finish successfully.
But if you try to do it on your own, trusting university channels, there will likely be people who don't believe you, people who are friends/colleagues of the person committing misconduct and not wanting it to be a big deal, people scared of the person's influence, and people who will ruthlessly cover up wrongdoing to cover either their own butt or the university's. Also, if a dishonest advisor suspects you are a threat, they are in a position to easily ruin your career with impunity, and you don't want to gamble on their true character.
You need help navigating that.
You can come back from this. You just need the the help of a lawyer, so even the sketchiest elements of the university will know they have to take you seriously, and deal with you fairly. And a lawyer can help make sure that they follow through on fixing it.
Also, whatever you do, don't let yourself be destroyed like this person in the article did. It sounds like he didn't feel he had options, was extremely stressed, probably sleep deprived, temporarily disenchanted with the field by the situation, and had been physically threatened. His case was tragic. Don't let another tragic case happen. You have more power than you think, and you'll feel better about the field and life once this BS is fixed.