I know this has been a problem for many, but myself and a coworker have spent a lot of time trying to find the source of the unwanted horizontal scrolling–it is worse on mobile than desktop, but present on all. If someone could help out that would be so helpful!
What browser are you using? I tested with Chrome and Firefox and I was not able to find any horizontal scroll in various pages. Not desktop, nor mobile. Are you using safari? If so, I’m sorry — no access for plebs like me