New outlook not showing total email count in each folder on windows application

You are right, you can right click on the individual sub-folder, yes that works. And actually the sub-folders do show the number of unread messages. But the issue is at the root level of each email address account, it used to show the number of unread in the inbox next to the email address accounts, without expanding the account to see all the folders.

So someone monitoring many email accounts could easily see which ones have new email and would not have to expand each of them individually to see which one's had new email. This is how the OLD Mail App worked, but seems to be a feature not included in the new app.

I see that the original question was posted 14 months ago. I am still struggling with this issue. Please help!

I am in the same situation than you. Please visit the following link and upvote it to bring this very useful functionality back.

Please bring back the status bar that shows the item count · Community (microsoft.com)

It also is possible to set folders to show the total number of items rather than unread items in the old outlook which is how I manage my workflow. See below:

This is effectively a small dashboard that lets me see my outstanding actions across general categories. Hovering over each of the folders to see the number in them takes away any benefit of it being a quick glance status bar. This is something I'd strongly advocate for the return of as it is the sole reason I have not upgraded.