This one needs a real project: it saves your session to a file on disk, which the editor here has no way to do. It is worth reading anyway, because almost every Playwright suite in a real company uses it.
Logging in through the form takes about three seconds. That sounds small. With eighty tests it is four minutes of every run, spent typing the same password.
You might think: log in once, then let the other tests use that session. Please do not. Your tests would depend on each other, and a single test would fail when run alone.