Hello Lenegade,
I personally don't use Focus on my devices. I work from home and I'm self-employed, so everything I do is pretty much entwined. However, I wanted to inquire, have you tried creating your Focus mode to enable for Location or App launch instead of time based?
See "Add a Schedule or Automation" here
-> Use Focus on your iPhone, iPad, or iPod touch - Apple Support
For instance, if you go to work, allow Work Focus to enable when at that location. I know for those working at home, like myself, that would not be useful. But if you launch a particular app for work, you could enable that option instead.
Either way, it could be a useful piece of feedback to the iOS team for future enhancement -- and it sounds like it would be a welcome idea.
Be sure to select the correct product or app here, this will ensure your feedback gets delivered to the correct team.
-> Product Feedback - Apple