i read in google that an icloud email address can only be used on apple devices

I suspect you misunderstood what was being discussed.

Here's an email option when using Android devices:

Use mail server settings if you need to manually set up a third party email app (client) to use an iCloud email account. Read this document --> Mail server settings for iCloud email clients. Click here --> iCloud Mail server settings for other email client apps - Apple Support

You will also need to set up an App-Specific Password --> Sign in to apps with your Apple ID using app-specific passwords - Apple Support

You could also use iCloud mail with a browser on a PC.

Then there's:

Download iCloud for Windows - Apple Support - Download iCloud for Windows - Apple Support

Set up and use iCloud for Windows - Apple Support - Set up and use iCloud for Windows - Apple Support

What is iCloud for Windows? - What is iCloud for Windows? - Apple Support

iCloud Photos and Shared Albums

iCloud Drive

Mail, Contacts, and Calendar

iCloud Passwords

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