I'm lucky to have a wider screen. But the forum pages are using only a small portion of it: lots of space left and right remains blank, so content is not nicely shown.
Can the forum pages be changed to better use the available screen real estate?
Is that browser or screen specific perhaps?
I have 28" screen and the forum is filling it as type this.
Using something a lot larger?
Using a 1920x1080 display.
I don't think it is browser related, as it is the case for FireFox, Chrome and Edge (Windows, if this would matter).