Hi @Jordie NWA
Welcome to our forum!
You may follow the steps (Calendar>View/Home>Week) to realize it. When you open the calendar again, it will appear default view to a Week.
It appears that this (set week view as default) does not yet exist and might be a good suggestion.
There is no specific button for default to Week, however, based on my research, browsers have memories so that once i change the view to Week (Calendar>View/Home>Week), the next time i open the Outlook on web and it will still show as Week.
Hope it helps!
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