The February 2024 ArcGIS Online update just dropped and I'm excited. It's got some big changes to Experience Builder. Select Widget! URL Parameters! Big improvements to Map Layers and Near Me! And perhaps most exciting of all, Group Filters! (And if you are on a 10.X version of Enterprise with SSO authentication, you will actually be able to use Developer Edition 1.14, unlike the cursed version 1.13.)
Let's go through the steps to make a Group Filter. During my testing, I discovered a neat (new?) option that also filters the filters, but there was a trick to setting it up, so we will go over that, too.