Hello Michael,
Not all quests are part of their respective subscriptions. The Pathfinder ones are not, but there are some Starfinder quest packs that are part of the subscription. For each subscription release, we create a thread in this forum that can be found by searching for: Month Year Society Scenario Subscriptions. For example, search October 2019 Society Scenario Subscriptions that will list all subscription releases for the scenario subscriptions.
For each new month, we will put up a new thread so you can know what to expect to receive as part of each subscription. The current pathfinder quest packs that have been released have not been part of the subscription, but if this changes it will be listed in the thread for the subscription posted each month!
If you have any further questions or concerns, please let us know. Thank you!