If you watch them you see that what they mean is (dramatised!) "I open my browser, which defaults at Google, then on the Google home page I type 'bing', click on the first search result, then go back because it wasn't Bing search but something else, then read the results and find bing search engine, follow that, login to Bing, then access the app button to choose "Outlook" online, ...".
You might not be able to train them not to search for a URL, but IME users will click an "outlook email" icon on desktop or favorites/links bar; of course you need to watch them to see if they do.
Aside: browsers could fix this but the browser makers are either the SE owners or in their pockets and don't choose to.