Do I have to install Discord?

No, you can use Discord in a web browser, such as Google Chrome or Microsoft Edge. 

To use Discord in a web browser, simply go to the Discord website (https://discord.com/) and log in to your account. From there, you can access all of the features and functions of Discord, including voice and text chat, file sharing, and screen sharing. This is a convenient option if you do not want to install the Discord app on your device, or if you are using a device that does not support the app. It is also useful if you want to quickly access Discord without having to open the app.