Can they listen to https traffic?

Question

Information Security

If https traffic is intercepted, then in theory is it possible to decrypt it and receive data, passwords, message texts? Well, let's say someone sits and sniffs free wifi in a cafe. https would be insurmountable for him, right?
And if, for example, a spiderman in uniform is listening to traffic, but somewhere at the provider already, then in this case, how?
The question is of interest only from an academic point of view, I want to understand how much we are all under the hood.

Answer 1

Possible MITM attack on HTTPS with the substitution of the server certificate. The browser should issue a warning that the certificate does not match the domain (but it may be valid). If the user ignores this warning, the transmitted data will be intercepted.

Answer 2

It would be strange if you were allowed to transmit data without any control. What if you're a terrorist?