We have this question where it was flagged that the question has too many questions in it. I am not seeing anywhere that states that it is not allowed. Other than risking making the question too broad. I thought it was an interesting topic so I am moving the discussion out of comments and into here.
Multiple questions is discouraged in the how to ask good questions guide ...
require too much guidance for you to answer in full, or request answers to multiple questions.
but I cannot find a rule saying it's not allowed (so long as it's not considered broad).