Flows MISSING in Dynamics365?

Hello! I have a PowerShell script to get information on Power Automate Flows. I learned that some of the flows do not have a WorkflowID (or workflowentityid). The failing ones seem random. They're in different environments, enabled and disabled, and have different creators/owners. I went to view the CRM table (? I'm new to this IT area, so please pardon any wrong terminology) at https://myenvironment.crm.dynamics.com/api/data/v9.1/workflows and these flows aren't in this table. I am very confused. Any advice?