PLEASE PLEASE PLEASE PLEASE PLEASE Give users the ability to sort by category. Otherwise there is literally NO POINT in categorizing emails.
Gmail is significantly further advanced with this ability, as moving emails to a separate folder is detrimental to my inbox flow.
Hello! I just discovered, that even though you can't "sort" by category/color, you can filter using the search box above the folder list. So far, the search field seems to work the same on the web Outlook as it does in the actual software. Below is a link to all the search options; for the category, you would enter "category:green" or whatever color your looking for.