cypress-real-events VS cypress-testing-library

I have used this great cypress-real-events package before and it seems to have helped this time as well. This library adds a "realHover()" event that works with CSS.

https://github.com/dmtrKovalenko/cypress-real-events TS - Dmitry Kovalenko

The way Cypress is built does not allow simulating “real” user actions out of the box. All of the actions there are triggered via JavaScript. Usually, this is not a problem; however, in terms of keyboard navigation, it is — we won’t be able to use a “Tab” key, which is necessary to simulate how the user would navigate around. Luckily, the Cypress Real Events package comes in handy (or its alternatives, e.g. Cypress Plugin Tab). It uses the Chrome DevTools Protocol (so it only works in Chrome) in order to fire actual system events. Still, it has its downsides, though — you won’t be able to interact with certain system elements like default selects. If you were to determine that this is an important part of your app, other testing frameworks might be necessary.

One of the additional layers you can add to make sure you are building a good, accessible app, is to use “accessible queries” for elements you interact with in the tests. In other words, you find elements by text, labels, roles, aria-attributes, etc., rather than using the IDs or data-test attributes. This applies to all layers of testing. There is a very useful project called Testing Library, which provides you with UI-centric queries out of the box. It has a separate package for many different testing methods and libraries, including the Cypress one: Cypress Testing Library.

Is it a react app? Could be dom churn on the CI? In which case you might take a look at this: potential fix in the CTL.

From doing some research it seems like most people use Testing Library for unit / integration testing and Cypress for E2E testing, but from reading the documentation of both it seems like you can use them for the same thing. There is also even a Cypress Testing Library to make things even more confusing. So what do you do? Use Testing Library for unit / integration testing and Cypress for E2E? Use Testing Library for everything? Use Cypress for everything? I'm just really curious what people think about this (and it seems like I'm not the only one.