Hello Eric,
Thanks for the question! You are correct. We no longer have the ability to set up blocked times with Screen Accountability™. I can definitely pass this suggestion along to our developers to see if this is something we can implement again! In the meantime, I would suggest looking into setting up Screen Time on your Mac. In there, you have the ability to set up time limits for apps. Here is a support article from Apple about how to turn Screen Time on: https://support.apple.com/en-kw/guide/mac-help/mchle4e2edfe/11.0/mac/11.06
Andy