All Documents No Folders

It has to look like that for other people in visiting. Is this in the files tab, or a custom tab, or in the SharePoint site connected to the Team? 

Basically, whatever it is you are looking at, has a view, assuming you aren't using a URL with prefilters and parameters in it, then you edit said view and there is an option in the Folders section where you can display all files without folders. You probably would need to remove the Group by on the file type that is in place in the screenshot as well, but almost make sure you aren't editing the default view for everyone else. 

Seems odd it's only for you thou, it must be using a personal view somehow. Anyway, Go to top right, drop down and edit the view, then look for options stated in previous paragraph.