1. Rudolph signed his extension in April, 2021. He knew at that time that he was the only QB signed to the team in 2022. If he thought the Steelers, or any other team, would go into a season with only 1 QB on the roster, he's an idiot. If someone had to tell him that he would have to compete for the job, he's an idiot. If he needed to be told that the Steelers would most likely draft a QB at a premium draft slot if one was available that they liked, he's an idiot. The Steelers', front office and coaches, responsibility is to get the best players possible on their roster. And if Mason Rudolph doesn't/didn't know that, he's an idiot.
2. Trubisky knew when he signed that he would be competing for a starting job. He was also specifically told that if KP was available at 1:20, they would pick him. So, all of the above hold true for Trubisky also.
3. I wish Mason Rudolph well in the next phase of his life. Once a Steeler, always a Steeler. After this year, he has a chance to prove that Tomlin, the coaches, fans, etc. were wrong about him. I don't see it happening. But, good luck!