[mynegation]

You can put INC123456 into the search field at top right and it should take you directly to the incident page.

But yeah ServiceNow is insane. Not sure how much of this is product itself or gajillion of customizations.

[Macha]

Top right is a settings gear and help icon for me, no search box. The only search box on the homepage is "filter navigator" which filters the left nav.