If you need to hide element if Media metafield is empty, you need to add this conditon:
In Field add metafield name and Value will be 0
And here is the result:
Show/Hide content when Media metafield is empty
Copyright (c) 2023, Intercom, Inc. (legal@intercom.io) with Reserved Font Name "Bitter".
This Font Software is licensed under the SIL Open Font License, Version 1.1.Copyright (c) 2023, Intercom, Inc. (legal@intercom.io) with Reserved Font Name "Bitter".
This Font Software is licensed under the SIL Open Font License, Version 1.1.Skip to main content
Show/Hide content when Media metafield is empty