This project might be a good reference if you want to publish a web-based game on steam and/or android, as the glue is already there. It also has an in-house framework to abstract Phaser's scenes (I call them "screens"), with proper behavior isolation and resource cleanup.
Free web version: https://lfarroco.itch.io/mana-battle
Steam: https://store.steampowered.com/app/3757600/Mana_Battle/