At present, there's no way to restrict or limit images uploaded to a multi-image collection field (unlike a standard singular image field, which has these controls).

This means editors can upload up to 4MB images, leading to substantial bandwidth usage.

As Webflow has now adopted lower bandwidth limits on their plans, I think it is only fair to provide wider controls around uploaded content to prevent unnecessary charges/overages.

It would also be handy if Webflow auto-compressed images in collections.