I think the reaction depends on how aware one is of how one's flow state works. Neurotypical people seem to be able to get back into it much easier than us ADHD types, but I think that's often because our flow states tend to be deeper, so it's much more annoying to be knocked out of it for seemingly trivial reasons by people who don't know how hard it is to get back into that state after an interruption.

In my opinion, this is (mostly) a "training issue". If I know this is how my brain works, it's my job to train those around me on how to help me be as efficient as possible, even if it's something as simple as "if my headphones are on, do not interrupt me unless something is ON FIRE, OR if I have been working for more than 3 hours without a break."

If either of those things are true, it's also my job to not be annoyed by the interruption, which is of course often harder than the interruption itself.