From what has been posted here, the rest of Season 5 that is now airing will be on Peacock in about 6 months. That is the streaming deal the original production company made.
The individual TV networks tend to control their properties and the content on their apps. Most times there is a delay from when it airs on a network to when it becomes available on the network's streaming app (in this case Peacock) and depending on the content, whether or not that is included free on the streaming app or they charge. I suspect in this case, it is just a matter of waiting for a short period of time before the episodes become available, especially if the content has been provided on the service before.
From what has been posted here, the rest of Season 5 that is now airing will be on Peacock in about 6 months. That is the streaming deal the original production company made.
