I have peacock and mostly watch the Olympics on it, and have for quite a few Olympics and the app has always had the same issues, especially with long Olympic events.
If you pause a long event sometimes when you come back it jumps back to the beginning, which is a huge issue because you can only fast forward by jumping ahead 10 seconds at a time and you are forced to rewatch all the fixed commercial breaks! Especially problematic with 2+ hour events!
And the worst part is the issue has persisted year after year! It is so annoying I will often just give up on events, because it is so frustrating!