Installing Unity

Download

The link to download Unity can be found here

Make sure to select 'Download Unity Hub'

Follow the instruction on the installed

You will need to sign up for a Unity Account (or you can sign in with Google)

Then, you need to click on 'settings' (cog icon on the top right), and then go to 'License Management'

When you have License Management selected, you can go ahead and press 'create new license' and select 'for personal uses'

Finally, Go back to the main menu and select 'Installs'. From here, you can press 'Add' and select Unity 2020.x.x. (LTS)

A more detailed version of this guide can be found here