What is the use of solutions in power automate. "call child workflow" is available in the workflows, which is built in solutions other than that is there any difference.

What is the use of solutions in power automate. "call child workflow" is available in the workflows, which is built in solutions other than that is there any difference.
@Anonymous Solutions in Power Automate enables seamless Application Lifecycle Management (ALM) in your org. This addresses your deployment needs by allowing you to export and import a set of flows. In addition, you can organize these flows within a single ‘container’ which simplifies navigating and managing these flows. Quoting from the Solution overview doc: "When you host your flows in a solution, they become portable, making it effortless to move them and all their components from one environment to another. A typical use case is for an independent software vendor (ISV) to develop flows in a sandbox environment, and then move those flows to a test environment. After testing, the ISV would then move the flows to a production environment for clients who purchase these flows. This process is much easier when you create your flows in solutions, and then move the solutions and their contents."