Hello Gulshan Kumar,
I am using theme JNews site:- https://thethus.com/ at the time of installation it was working fine and good but when I was troubleshooting the issue a 1 issue is created & at that time updraft was also not working leave, but I have done as you said to check site health it’s 100 % fine only showing 1 request in site health to update the plugin.
I have seen some other websites too on my pc like GulshanKumar.net or help.gukshankumar.net & several other sites too all are showing with good screen width. In have contacted to theme developer too they said to check pc scree resolution, if pc resolution is changed that that same issue should happen to all websites why only on my site??
Any idea or suggestions??