I am currently running a utility to square off the window borders in Windows 11.
on KDE5-6, ironically, to have high-contrast windows and square borders, one must use something written because the author wanted round corners on older versions of kde :)
https://github.com/matinlotfali/KDE-Rounded-Corners
on KDE5-6, ironically, to have high-contrast windows and square borders, one must use something written because the author wanted round corners on older versions of kde :)
https://github.com/matinlotfali/KDE-Rounded-Corners