This summary is not the rule. The rule text controls.
If you're asking a court to review a decision from LUBA (the Land Use Board of Appeals), LCDC (the Land Conservation and Development Commission), or a referee, filing a motion before oral argument doesn't stop the clock. The case keeps moving forward on schedule. The record still has to be sent to the court on time, briefs still have to be filed on time, and the oral argument still happens as planned, even if a motion is pending.
The same idea applies to cases involving the CRGC (Columbia River Gorge Commission), but in a narrower way. If you file a motion before oral argument in a CRGC case, it only affects the deadline for sending the record to the court. That deadline keeps running no matter what the motion asks for.
In short, filing a motion doesn't buy you extra time or pause the case. Everyone involved still needs to meet the normal deadlines while the motion is being decided.