Configuring preferences and options in Outlook on the web for business
It is incredible how many horrible things were added/change in "NEW" Outlook and not to mention removed.
Just roll back outlook to 2016 and force update everyone, no one wants this garbage that keeps getting added/changed, the fact that we cant even insert HTML either anymore is laughable with an app that is essentially a web application.
Whoever took over the Outlook team should get reassigned and bring back the old team who can actually understand what users want and not nonsensical changes that they think are cool.