How to open the site and wait until the user manually logs in to the site and then continue testing selenium?

Question

Software testing

In general, I launch chrome through webdriver . The authorization page opens. How to wait indefinitely until the user logs in to the site. it can be 30 seconds or 3 hours. and after authorization run tests.
And the second question is how to find out that the user has logged in during the test and pause the test?

Answer 1

solved
bool auth = false;
while (auth == false) auth = driver1.WaitUntilExists(By.LinkText("Profile"), 10);

Answer 2

Attention question. Why wait for user action in autotests?