I am using Sharepoint online with 364 Groups

So one site and multiple groups

these are internal organization group

What i am trying to do ?

the root of the site documents library, i set the group to view only, this is because i want only the owner to be able to create files under the root

then i give folders under root permission to groups with EDIT with manage access button

the problem is, that this groups still have only read permission ?

it only works if I create a new link on the actual folder.

why it does not work?

what is the flow of this ? that the people who want to edit things should have the main access with edit , and then should i actually remove the permission to read only ?

i feel its like windows permissions