How to find out which process is using the internet?

Question

Windows

So, when you connect a laptop to Wi-Fi, the laptop starts to actively use the Internet, as if, for example, when watching a video. (That is, I see this activity on the graph in the "Network" tab in the "Task Manager" window) Although no browsers are open. I have an assumption that maybe these same browsers or other applications / programs, although they are not open, but maybe they use the Internet to, perhaps, download updates or transfer information about the sessions held in their browsers / applications to servers. But my inner paranoid tells me that, most likely, the files from the computer are leaking to ... thieves, let's call them that. Yes, there was also a thought, but is anyone mining using my laptop ?!
In general, how can I check which browser / application (which program) is using the Internet? Is there any magic way to find out which process is using the internet?
D, and in general, can it be that the program uses the Internet and it is not visible in the processes in dis. tasks?

Answer 1

Here and here you can see all the processes and where they send traffic.

Answer 2

Task Manager (Ctrl+Shift+Esc) \ Performance \ Resource Monitor

Answer 3

Built-in utilities (or install) lsof, ss (aka - netstat), you can even view traffic using tcpdump for more in-depth analysis.