It is a good practice to publish all your PowerApps regularly as sometimes the enhancements/features don;t show up until you publish the app.
You can use Flow and the “PowerApps for App Makers” connector to publish your apps on a regular basis. ( I do it on a monthly basis)
Hope this helps.
Link to the flow files here – https://github.com/thatapiguy/Publish-All-PowerApps-using-Flow/