Hi @wymdm ,
Firstly, let me show your the differences between different licenses:
1)office license could only create and run apps that are connected with standard connectors.
2)powerapps standalone license(per app plan/per user plan) could create and run apps that are connected with standard connectors, premium connectors.
Premium connectors includes: CDS,SQL,gateway,....
Per app plan: could create and run only one app
Per user plan: could create and run multiple apps
Secondly, let us look into your issue.
You create an app which uses standard connector, so no matter the users or the creators all only needs office license.
To sum up, A1 license is enough to run this app.
I suggest you know more about licenses here:
https://docs.microsoft.com/en-us/power-platform/admin/pricing-billing-skus
What's more, for now, I do not receive any notification about the changes of license.
So you do not need to worry about this temporarily.
Best regards,