[Tkinter] Window geometry appears different on Win and Linux

[steve_shambles]

that shouldn't be the case, although there are some physical differences that might make the size appear to be different.
I don't have a windows computer, so cannot test.
is the geometry statement identical on both OS's?

The first root.geometry below works on Windows.
When that geom is run on my Linux Mint setup it comes out different,
not wide enough and too short.
So I check if not Windows and the 2nd geom
is the adjustment Linux needs to make it look the same as on Windows.

53 extra pixels wide and 31 extra pixel high.

if sys.platform.startswith('win'):
    root.geometry('464x632')
else:
    root.geometry('517x663')