New administrator setting to manage external sharing of Microsoft Forms

Does this take a long time before the setting is reflected on the end user side? I checked "Send and Collect Responses" under External Sharing in the Admin portal a few days ago but my end users (including me) still don't see the option to share their Forms with anyone but external users (in fact, under Share, it says "Only people in my organization can respond."  Is there another step I am missing?  We are a GCC tenant so maybe it isn't fully implemented yet, even though the options are there in the Admin portal?