Remove gifs & emojis from Microsoft Teams

teams-emoji-remover.js

// ==UserScript==
// @name         Remove emojis & remove gifs
// @namespace    http://tampermonkey.net/
// @include     *://*teams.microsoft.com/*
// @version      0.1
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var styles,
        stylesTag = document.createElement('style');
    
    styles = '[class*="animated-emoticon"] { display: none; }';
    styles += '.stopped-gif, .playing-gif { display: none !important; }';
    
    // Add styles to tag
    stylesTag.textContent = styles;
    
    // Append tag to DOM
	document.head.appendChild(stylesTag);
    
})();

You can set up a script to inject ordinary javascript into the app. I set up a package to try to put more emojis in but you could use the same technique to do the opposite.
have a look at my repo: https://github.com/dsmiller95/microsoft-teams-emojifier

@dsmiller95 - setting that up seems a little more complicated than what I would have wished for. I'll try using the web version and see how it works for a while