I helped give the PSAT on the digital platform last October as a test school. the students with extended time/breaks were in my room. I only had 4 students. The one had extra time for the subject tests. Another had extra break time too. So if test length was 35 mins , they got their extra time and then normal break was 10 minutes, they got 20 minutes. PLEASE PLEASE ask your counselors if they need all this time.
Unless, the SAT changed it - you could not move onto the next section until the time ran out. So one of my students finished in the 35 mins, sat there for additional time and then had to sit through the entire break time. It was like 45 minutes later before they started the next session, they aren’t allowed on phones or books, so they were so bored.
Does that make sense ? Yes, to extended time, but maybe not to extended breaks - talk to your IEP person