I’ve noticed two issues related to Collections URLs.
1- If the Collection’s name has accents, the permalink removes that letter. e.g.
Gestión de Incidentes → collections/Gestin-de-Incidentes
That’s a problem for many languages that have accents. Some will argue is just cosmetic but it matters.
Also I think the permalink should be downcased, but that's a personal preference.
2- If you change the Collection’s name, the URL also changes.
That can be problematic if users save URLs in their bookmarks or use a URL shortener to reference a Collection.
IMO, once the collection is created, you should keep the URL and add an option to the Collection settings to allow collection owners change the URL if needed.