Room schedule

Each room has its own Google calendar

These calendars are completely independent from cal.com

They are shared with colleagues working in the specific office

You see these shared calendars in your own Google calendar (you can toggle their visibility on or off so they're not distracting when you don't need them)

If you are working outside your designated slot, it is mandatory to book the slot of the room you are using, so your colleagues can see when you are using the room

Create the event in your Google calendar and invite the appropriate room as a guest

Create the invite first in cal.com, and then book/invite the room in your Google calendar, (this way cal.com won't show it as busy)

Event name suggestion: "Shared slot_Bence" or "Minka's slot_Tamara" (this shows what you're using and who you are)