How to view group emails within main email inbox
Outlook through the web browser online:
Scroll down to find Groups on the left side, click into the group you want to follow in your inbox, click on the 3 dots with the group that populated on the screen, go to Settings and under Follow in Inbox, select Receive all emails and events. These emails should now go to your main email inbox.
Outlook App:
Scroll down to find Groups on the left side, click into the group you want to follow in your inbox, go to Group Settings and under Follow in Inbox, select All Emails and Events. These emails should now go to your main email inbox.