Sharepoint Permission Level for PowerApp with PowerAutomate Flow

I have created a Security group for the users in the organization who mostly will be utilizing PowerApps.

I am trying to figure out what a  minimum Sharepoint permission level is to be applied to document libraries and lists in Sharepoint.

PowerApp is using flows which create/delete files and folders in Sharepoint libraries, items in lists. Within an application users can open files (link to the file is provided by a flow).

Created an 'Edit_Limited' permission level.

When a user opens Sharepoint document library directly (for the test purposes only), he can create/open/delete folders/files with the permission level lower than it is necessary from within PowerApp/Flow.

Why does PowerApp/Flow combination require rights elevation? It requires the Site Permissions/Manage Permissions to be selected, though for the direct access (SharePoint) it is not necessary.

This is a permission level which works with PowerApp :

With 'Manage Permissions' unselected it works for the direct Sharepoint access.

I need an absolute minimum Sharepoint permission level for this group of users.