I use playwright to run an automated test every time I deploy to staging.
I don't think it's caught any real bugs yet because I haven't actually broken anything but the playwright script keeps running reliably it includes a login and fills out a big long complicated form. Works great. Very quick. Selenium was slow and unreliable.
Do yourself a favour, use Playwright instead.
https://playwright.dev/
It's a headless browser that's both faster and less flaky than Selenium.