It depend how you want to access your account.
If you use webmail (where you access your email via your web browser), you don't need to do anything at all. You can simply go to your email provider's website and log in from there.
[If you'd like to create a desktop shortcut to the login page, go to that page, reduce the size of your browser window (by clicking on the overlapping squares in the top right-hand corner of your screen) and drag the symbol which appears immediately to the left of the URL in the address bar onto your desktop].
If you prefer to use a dedicated email app (which has absolutely nothing to do with your web browser) in order to access your email, you need to choose between using the fairly basic Mail app that comes with Windows 10 or downloading and installing something a bit more advanced.
If you decide to stick with the Windows Mail app, follow the instructions here:
https://support.microsoft.com/en-us/office/set-up-email-in-the-mail-app-for-windows-10-7ff79e8b-439b-4b47-8ff9-3f9a33166c60
If you require a more advanced email app, download and install Thunderbird
https://www.thunderbird.net/en-GB/
and then follow these instructions:
https://support.mozilla.org/en-US/kb/automatic-account-configuration