Does using a workshop collection ID also download the addons for the players or should I keep using resource.AddWorkshop for that? Also does manually uploading the addons to your servers have any advantage over adding a collection ID?
No. The collection is for your server only and resource.AddWorkshop is for your clients only.
Workshop addons are faster for clients to download, but you can’t directly edit files in workshop addons.
Okay thank you!