Hi djdorgo,
If your Focus status is not updating in Messages, do you have another Apple device signed in with this Apple ID? If so, see if you have Focus on for these other devices as you can share this setting across devices as seen in Use Focus on your iPhone or iPad.
Another setting you can check is Settings > Privacy & Security > Focus and see if it is enabled for Messages.
If it continues, as you are up-to-date, updated, and have checked all of your settings, reach out and Contact Apple Support or use this Get Support link for assistance.
Take care.