Draftsight is always maximized on Screen

Hello community!
I am using DraftSight Enterprise 2023 SP1 x64 on a multiple screen setup.
My problemis, that Draftsight always opens on complete screen and it is not possible to resize Draftsight
to a window. No issue with all other apps on my computer).It ispossipleto transform to a window and move the window,but it has always the size of the screen (Full-HD 1920x1080, 100% scale - also in Home-Office Dual-Monitors, 4K, 100% scale)

Does anybody has any idea, how to approach this issue.