Don't know why Suella is getting on her high horse. Has only spent about a year in cabinet. Had to resign, then was sacked after being generously re appointed.
Doubt that Sunak made deals with Suella prior to her being re appointed. She's wasn't a heavyweight.
If things were so toxic, she could have resigned. But didn't.
She may become leader of the opposition after the election. Mainly because no one else will want the job.