Details and Conditions
Jackbox games allows monetization through live streams, except for paid access (such as Twitch Subscriber streams). Their terms are specifically in regards to live streaming and they do not mention anything about on-demand videos. You could reach out the developers but as long as you're following their terms, you should be fine for YouTube videos.
"JBG welcomes the streaming of its games to a live audience (“Live Streaming Content”) via Twitch and other video streaming services, provided that such Live Streaming Content complies with this Agreement and the following conditions:
Live Streaming Content must have no commercial (i.e., monetary) objective. As an exception to this, you are permitted to monetize Live Streaming Content (such as Twitch and YouTube videos) with advertisements, subscriptions, bits, or other monetization tools integrated into the streaming platform, as well as external subscriptions such as patreon donations. You may not sell tickets or charge money for “virtual gameshow nights” and similar activities. You may not sell or resell access to the Services.
All Live Streaming Content must be appropriate for the audience of the Services, comply with applicable law, and be free of any material that violates the rights of others or that is offensive, sexually explicit, or defamatory (as determined by JBG).
You may not say, publish or engage in any conduct that would lead viewers to believe that the Live Streaming Content is endorsed, approved or sponsored by JBG, or produced in partnership with JBG. In addition, the Live Streaming Content must not include any co-branded content without JBG’s express written consent (e.g., promoting sponsorships with other companies).
You may not use any JBG Content or Marks in a manner that is derogatory or that may damage the reputation or goodwill of JBG (as determined by JBG).
The Live Streaming Content may not include links or information related to exploits or hacks to the Services or any other games.
JBG, at any time and in its sole discretion, may revoke your permission to create and publish Live Streaming Content and reserves the right to remove the content from any third-party service and/or take other action it deems appropriate."
What it Means
Live streams ARE be allowed
Videos SHOULD be allowed
You CAN monetize on YouTube and Twitch with ads and subscriptions (specifically live streams)
You CANNOT be able sell or charge for access to your content (this would include Twitch "subscriber only" streams or selling merchandise)
Any licensed IP or music not owned by the publisher are not covered by this policy