Hi @ramielm ,
Could you please share a bit more about the "Status" column in your SP List? Is it a Text type column or Choice type column?
Could you please share a bit more about your data source? Is it a SP List or a CDS Entity?
1. If the "Status" column is a Text type column in your SP List, please set the Items property of the Gallery to following:
Filter('YourSPList', Status <> "Completed")
or
Filter('YourSPList', Not(Status = "Completed"))
2. If the Status column is a Option Set type column in your CDS Entity, please consider modify above filter formula as below:
Filter('CDS Entity', Not(Status = [@OptionSetName].Completed)) // OptionSetName represents the Option Set your "Status" column related to within your CDS Entity
or
Filter('CDS Entity', Status <> [@OptionSetName].Completed)
If the OptionSetName the "Status" column related to is "Status", please modify above formula as below:
Filter('CDS Entity', Not(Status = [@Status].Completed))
Filter('CDS Entity', Status <> [@Status].Completed)
Please consider take a try with above solution, check if the issue is solved.
Best regards,