Yea I always try to block off at least two days a week (ideally 3) of complete focus and move meetinga, conversation etc in other days. Both are useful and are needed
I have checked your busy / free calendar information and it seems you do nothing around here. We thank you for your service but it is no longer required at this organisation.
I obviously cannot speak for every business in every country, but at least in those I’ve worked at, you’d never get fired for based solely on the number of available slots in your calendar.
I've never noticed the busy indicator preventing people from asking me this question. And when I message others, the busy light is merely an indicator of how long I may need to wait for a response. My advice to anyone reading is not to be deterred by status lights and calendar blocks.