LMS and CMS workers

Hello everyone! How are you?

I’m configuring a cluster with OpenedX using tutor and I need to set the resources and autoscaling configs, but I don’t exactly what cms-worker and lms-worker can execute.

Do we have a list of tasks that workers can do?
I found this documentation 2.2.6. Background Work but it is not enough.

I would like to know if I need to scale up the lms or cms service I need to scale the respective *-worker service in the same way.