You don’t prioritize your personal focus, you prioritize an objective. Most often these objectives are very clear to the rest of the team.

Also I can’t believe you “know” something is “important enough to interrupt them”. I work for a place in which the most “junior” dev is worth a quarter of a million dollars a year. I am not going to tell some dude who is probably figuring out a new way to pack data to save us thousands of dollars a day, to take a minute to listen to me. It better be a fire.