Vercel previews offer a great way to test PRs for a project. They have a predefined environment and don’t require any additional setup work from the reviewer to test changes quickly. Many projects also use end-to-end tests with Playwright as part of the review process to ensure that no regressions slip uncaught. Usually, workflows configure Playwright to run against a project running on the GitHub action worker itself, maybe with dependencies in Docker containers as well, however, why bothe...