This summary is not the rule. The rule text controls.
Here's a plain English summary of this rule:
When someone files a motion in a criminal case, the judge gets to decide if there will be a hearing on it. Either side can ask for a hearing, or the judge can decide on their own to schedule one.
Even if there is a hearing, the judge doesn't have to let the lawyers argue their case out loud. The judge can limit how much talking happens, or skip oral arguments completely, unless some other rule says they have to allow it.
Basically, this rule gives judges a lot of control over how motions get handled. They can decide whether to hold a hearing at all, and if they do, how much back and forth discussion to allow. This helps keep cases moving without getting bogged down in lengthy arguments over every single motion.