> currently have a weird situation where a bunch of folders are arranged horizontally and go beyond the right border of the window
Switch the view mode. View > as List (Or Cmd-1, 2, 3)
Alternatively if this is happening in icon mode, select all (Cmd-A), and sort with View > Sort by. You can also make folders always sorted. View > Show View Options (Cmd-J) and change it as you want, then click "Use as Defaults" at bottom.
currently have a weird situation where a bunch of folders are arranged horizontally and go beyond the right border of the window. but there is no horizontal scroll bar indicating that.
the windows xp/nt/2000 file explorer is the pinnacle of file exploring experience. basically every linux file explorer just more or less copied it - for good reason. but no - apple has to reinvent the wheel and came up with a messed up hexagon.