The new version 2023.01.26 of AppGameKit Classic (aka AGK2) is now available for Linux on Steam. The changelog for this version:

AppGameKit Classic 2023.01.26 update released! Welcome to a new update for AppGameKit Classic. This small update includes these few changes: Fixed Android export using the AGK adaptive icon if only a legacy icon was supplied Added support for BMP image files Added GetInAppPurchaseIsRenewing to return subscription renewal state on Android