I find long lines of text hard to read ==>>
https://practicaltypography.com/line-length.html
On my setup the full width validation widow is 200+ chars wide.
Added: I realise I could float the validation window but I prefer to have child windows inside the main window. If you have a reasonable size hi-res monitor (e.g. 25" 2560x1440) it should be doable.
BR