Removing the"Suggested" List in Teams Chat

Here's how to fix it!

Download the extension "Stylus". Make sure that it is not "Stylish" - which has security flaws and is deprecated.

Stylus lets you change the CSS of your page. Create a stylus entry for the page and add the content below:

@-moz-document url-prefix("https://teams.microsoft.com/v2/") {
    /* Remove "Suggested Chats" from the left panel of Microsoft Teams Chat */
    #SUGGESTED, #suggested-project-group-chat{
        display:none;
    }
    [id^="chat-list-suggested-contact"] {
        visibility:hidden;        
    }
    [data-testid^="chat-invite-button"] {
    display:none;
    }
}

Note that periodically MS changes the names of their CSS ids so this may stop working in a year.
Also, you can decide if you want "visibility:hidden" or "display:none"

This is an incorrect answer. Suggested Replies are automatic phrases to reply to a message. This has nothing to do with Suggested Contacts. At this point, there is no way to manipulate suggested contacts. I am currently running a test to see if this is integrated into Outlook. I have cleared my Auto-Complete List through Outlook options. I will report in 24 hours whether this works.

Waited 3 days to see if Outlook was the culprit. It is not. This needs to be fixed!

The setting DOES NOT WORK. In the developer world, this is called a defect...bug...ERROR. This needs to be fixed ASAP. The suggested list is interfering when typing names for search. This is unacceptable and the dumbest, moronic thing done. Do your offshore coders even understand how to code or does your quality assurance team just not care.

Seriously, why is this a thing? It's suggesting the most random people who have nothing to do with my business. Do the clowns that implement these platforms even use it? If I were a betting man I'd say no. Get it together MS...this **** is embarrassing. Or better yet, how about giving your paying customers the option to use this pointless feature or not. What a concept!

It's awful! I'll click on an established chat with a coworker and start typing, and it will randomly take my message and put it in a new chat window with a suggested contact outside of my organization. I don't ever want to chat with anyone outside of my organization, and it shouldn't even be an option. Not to mention the frustration of having to delete that and go back to the chat I intended the message to be for. Fix this Microsoft!