With WhatsApp, you can get fast, simple, secure messaging and free calling on phones around the world. If your only option is to connect via a desktop computer, then only the Windows and MacOS platforms support.
If you have a Linux machine then you are out of luck for the official desktop client.
There are Linux apps that can give you almost the same WhatsApp experience that you would get with the Windows and MacOS platforms. But they are not officially supported by WhatsApp.
If you cannot find a dedicated WhatsApp desktop client for a Linux machine, you can use a supported WhatsApp web client on popular web browsers instead.
WhatsApp works to a large extent like what the Web does, except that it provides a dedicated desktop client for Linux machines.
You can installWhatsApp on Ubuntu from Snap Package Manager. Snap must already be installed on Ubuntu 18.04 and above. However, if you are running a previous version, run the command below to install snap.