The tool window size changes after minimizing and change size of the application window

Sometimes I have to maximize Pycharm to half the screen. After that I minimize the file browser window. The size of this window does not change when I change the application window before, this is correct. But if I first maximize Pycharm to full screen, and then maximize the file browser window, it will be larger than it was initially, this is not correct.

Problem: when I minimize the tool window, it remembers the size in percent, not in pixels.

How can I specify that the size of the tool window does not change?