With Cypress, you can easily create tests for your modern web applications, debug them visually, and automatically run them in your continuous integration builds.

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Recently I quit my last project where I was manager of Cypress. Even though I still want to progress in writing tests and learn Cypress with my friend. Do you guys know any good websites where we can test freely? Is it legal to maybe test websites like Amazon, Facebook etc.?
I know we can write our own app but right now I don't really want to waste time on it. Maybe you guys already have solutions :)

https://cypress.tips/courses/swag-store is based on the free app https://github.com/bahmutov/taste-the-sauce

Thanks <@715580668045951047> !

Can I fork it and make our own repo with tests to this app?

Thank you <@715580668045951047>! ♥️ 
Would be there any more advanced examples? Do you know if I can start testing websites that don't belong to me? For example Facebook, as I mentioned before

You can fork it, do whatever you want with the repo

it won't really work, since all the sites now use bot detection and will prevent you from automating them using Captcha protection