Hi @Anonymous
If I understood correctly, you want to filter the items in gallery based on the dropdown on the top of your screen. If this is correct, then you can use the below expression:
Filter(DataSourceName, ColumnName = DropdownName.Selected.ColumnName2)
Here, you have to replace DataSourceName with your list, ColumnName with the name of column in your list and DropdownName with the control Name on the screen, and columnName2 with the name of column you want to pick from the dropdown.
Hope this Helps!
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