Currently, our testing guide page states the following:

Testing helps you write and maintain working Astro code. Astro supports many popular tools for unit tests, component tests, and end-to-end tests including Jest, Mocha, Jasmine, Cypress and Playwright.

However, the page only has a mention for how to integrate Playwright into E2E testing for Astro apps.

It would be awesome to see similar content for Cypress, since it's explicitly mentioned as well.