I use keyboard shortcuts a lot and in outlook I am used to the Ctrl+1/2/3/4 to go between mail, calendar, contacts, etc. In teams I found myself using
Ctrl + 2 to go to the calendar which actually brings you to the Chat tab. I know I could use
Ctrl + 4 but you know muscle memory…
Then I found out you can reorder all the tabs on the left, so not I have Chat at the top just like my mail
Ctrl + 1 followed by Calendar which means it is
Ctrl + 2 which is now very similar to Outlook!
This may or may not help someone but I found it handy.