The post approval process is outlined in global rule 15.1, see:
15.1 If you are a New Member, and you want to create a topic or reply in a category you do not have posting access to, you need to take the following steps…
It should be rephrased to explicitly outline which forum categories are a part of the approval process (platform feedback, development discussion, etc). Currently it can be interpreted as encompassing all forum categories. Whether or not it would be redundant to request off-topic approval is besides the point and may not be common knowledge. I also propose that a “priority disclaimer” is added (assuming this is how the process works internally), where naturally bug reports would be prioritised over less-impactful requests and would be processed faster.
(cc @buildthomas because they have pushed similar clarifications to the rules thread before).