La fonction de suggestion automatique permet d'affiner rapidement votre recherche en suggérant des correspondances possibles au fur et à mesure de la frappe.
Welcome to the Community, from the information provided, It looks like that could be related to cache in your browser. My recommendation would be first to clear the cache on your browser, ( Step by step here ).
After that could you please confirm that you are not able to see the delay in deals?
About your 4th question, could you provide us more details, such a screenshot of what you are referring to? Looks like that this could be a setting in your Macbook, to bring your to a different page desired, The more information, screenshots, and details you can provide, the better I can advise on the next steps.