The Google Meet chat window's Tex-equations are parsed by this addon using KaTex and simple markdown. On the homepage, you may see references to how messages are parsed as well as dependencies. Additionally, the homepage has a playground where you can spend some time practicing parsing your messages. Its homepage can be found at https://panchalshubham.github.io/google-meet-tex-support/

Other features that this extension offers are basic markdown, inline and block equations, highlight the source code, and emoji shortcuts and it works with Chrome and Chromium. This free extension was made especially for instructors to help them with their classes and make it easier.