Updating a solution that is not on the top level layer does not make the updated solution top priority. For other solutions, except for model-driven apps, forms, and sitemap components that use "top wins" behavior, the solution at the top level determines the functionality of the component, as described in the following pages.

https://learn.microsoft.com/en-us/power-platform/alm/solution-layers-alm#top-wins-behavior

Therefore, it can be very inconvenient for an updated solution not to be at the top level. Please consider adding functionality to help this situation.