I usually keep Microsoft Teams open in one browser tab, and sometimes I open Outlook in another browser tab. Often if I click on my bookmark to open Outlook (which goes to https://outlook.office365.com/owa/) instead of Outlook opening I will get a screen that says something like "hang on a minute while we sign you out". I did not ask to be signed out! This affects my Teams tab as well. Then I have to log in again in order to access Outlook. This usually happens the first time I open the Outlook bookmark on a given day. This is very frustrating behavior.

More options for the date format would be helpful. Showing the date by numbers (m/d/yy or d/m/yy) is impractical (has been forever) because of how easy it is to get date, month, and year confused.

Why not have a format for Mmm [d]d, yyyy? Examples: Jan 7, 2020. Nov 23, 1990. Jul 8, 2008.

Most of the date formats that are available are ambiguous. Even dd-Mmm-yy, which is the least ambiguous, is still possible to confuse. 19-Sep-20 could be confused between Sep 19, 2020 and Sep 20, 2019.

Also, as it has been noted all over the internet, using "20" as the year makes it easy to add any year in the 20xx century by adding any two digits after it. Yes, that is mainly a caution in handwriting the date, but it still could cause trouble.

Please add "Mmm d, yyyy" to the list of formats, because not only is it completely unambiguous, it is THE EASIEST format to read anyway!

I'm in web browser based outlook only. I have three key folders I move emails into. The order they appear each time on the drop-down thing is based on what I last used. E.g. if I last moved an email to folder A it shows up first among the three. But this way of doing things is stupid. Because the order is always changing depending on the folder I last sent an email into. I want it all to stay in the same order on the drop down so each time I click on it I know where the folder is. As it currently stands outlook makes me make one additional thought each time. It's like opening a drawer in a desk and each time everything is re-arranged so you never know where to look. It's complertely inane.

I send and receive a ton of calendar meetings across two international sales regions. I organize my events for these regions onto multiple calendars for sharing purposes. For example, I share the calendar "____ Region Training" with my team so they can see the upcoming training events. If I create a meeting with invitees, OWA doesn't allow me to retroactively change the calendar. And when I am invited to events that correspond to one of these regions I am not able to change which calendar it is on. This is a really important function to aid in scheduling and organization in my regions.