Skybrary might not be the best reference but it's easier for Google to find than to find the relevant chapter and paragraph of PANS-OPS or TERPS. (The list is identical to my OM-C):
https://skybrary.aero/articles/appro...categorisation
Speed ranges exists for all published segments from the initial approach fix to threshold speed and missed approach. Does that help settle the argument?
Are you thinking a scenario whether you have to fly maximum e.g. max 160 KIAS from the FAF if you're a Category C airplane?