
You can use the Ribbon Workbench in XrmToolBox to conditionally show or hide buttons.
Install XrmToolBox and add the Ribbon Workbench plugin.
Open your solution in Ribbon Workbench.
Find the Command Button for the specific Flow under "Run."
Attach custom Enable Rules using JavaScript.
If you're open to using a Canvas App as a gateway for controlling which Flows are visible:
If the flow itself should only run under certain conditions, you could handle that logic inside Power Automate by: