From a thread in the recently-created operatorframework-pgm mailing list:

Please verify that your relevant operator runs correctly under OLMv1 using the instructions in the Verifying Published Content with OLM v1 document.

_We must receive your results by November 21, 2025, to ensure all required fixes on the OLM side are merged into OCP 4.21 before the December 5th Feature Freeze._

 

Cost Management is in the list of operators that requires webhook and/or {single/own} namespace:

https://docs.google.com/spreadsheets/d/1Nb5BUNyfMmgzBQdXL4MRJKr1MJBU6H8W3JOmzdSANi8/edit?gid=423831937#gid=423831937