Simplest practical method I can think of to start with: tag CK-related content model changes specifically (T223269), then just check the logs. Categorise hubs/lists so we can look at them (T223186).

Later we'll still want to do specific stuff about the actual outcomes (tasks in description), which is a lot harder...

T368092 says this extension is being archived. Presumably this means all related tickets, like this, should be either declined or set to invalid.