Hey @Jonathan_Kruse -
Thanks for testing this and sharing the screenshots. This new setting was introduced as part of the July 9 App Pricing update, so it should work there.
If the app and development store belong to the same Partner organization, every available plan should be selectable at no charge. For stores owned by another Partner, plans marked “Free for partners and developers” should be selectable at no charge.
Since you’re still seeing “Unavailable on dev stores,” that doesn’t look like the expected behaviour. Could you share the app ID/app URL, development-store domain or ID, whether the app and store belong to the same Partner organization, and the affected plan names/handles?
If you’d prefer sharing that privately, just let me know and I can set up a DM.