Tested with Explorer++ v1.3.5.531 and v1.4.0.1748 on Microsoft Windows Server 2019 up to date.
We have this folders tree:
share
------ services
------------ management
------------ production
------------ whatever
------ people
------------ monica
------------ john
------------ whatever
parent folder (services or people):
- inheritance disabled
system = full control
administrators = full control
users = read and execute for the current folder only
child folder:
- system = full control (inherited)
administrators = full control (inherited)
users = nothing, because the permissions are only for the parent folder
whatever-user or whatever-group = whatever permissions (tested with read and execute, or modify, or full control)
When child folder is deleted using Explorer++, the parent's folder permissions for "users" are gone. So Explorer++ modify parent's folder permissions.
The standard explorer does not exhibit the same behaviour.