Power Apps studio includes test tools, however these are not available when you use co-authoring. So how about automated testing your Canvas Apps using Power Automate Desktop?

At Ignite 2022, Microsoft debuted a new feature that leverages OpenAI's Codex AI system to streamline workflow creation in Power Automate.

Microsoft today announced that it is making Power Automate Desktop, its enterprise-level tool for creating automated desktop-centric workflows, available to all Windows 10 users for free.

Especially when SharePoint lists need to be kept separate for security reasons, this Power Automate flow tutorial will help you keep both lists up-to-date.