Sure, maybe 2 minutes. But not only does each 2 minute interruption actually cause a full break in current work; context switching is notoriously costly for programmers

small Code Reviews should not warrant an interruption of your work, because not reviewing them should not block anyone. they should be done when someone is actually idling or at a planned time. most of the time i'll review small changes directly after a daily if someone mentions a small open pr before starting with my actual work, i definitely prefer this to people just merging things and losing the chance to ask questions.