VI_Migration That is a good question. Multitasking Hours are only calculated when an individual is in a meeting, they will not be calculated during Focus Time. An individual must be in a meeting in order for Multitasking to apply to their collaboration work, if they are in Focus Time they by definition are not in a meeting, and if they are in Uninterrupted Focus Time by definition the individual cannot be in a meeting, send any emails or send any Teams IMs.
Here is the definition of Multitasking Hours: Number of hours the person spent sending emails or instant messages during a meeting or a Teams call.
There are two definitions of Focus Time
1. Total Focus Hours: Total number of hours made up of two-hour or more blocks of time where the person had no meetings.
2. Uninterrupted Focus Hours: Total number of hours where a person has more than or equal to a one-hour block of uninterrupted time to focus on work during their set working hours. It's only counted as uninterrupted time when the person has no collaboration activity, including attending a meeting or an unscheduled Teams call, sending an email, or sending a Teams instant message.
Let me know if you have any further questions!