To bring this thread back to it’s topic:
Thank you Ghastly, Raptor, Pegasus and Cabraasesina for your input. I will try the last option with borderless. The other solutions unfortunately did not change anything for me.
(I have also flown all the versions from the original till now and I am nothing but grateful for the vast improvements we have witnessed and for how much this adventure is taken further. A big thank you to this community for working together to a common goal and for the enormous amount of work that is put into it! )