Skype - do you have to pay?

For years, I have not used Skype. Do you have to pay for skype calls (laptop) in 2019?

From Skype to Skype, it's still free.

No, not if you call Skype normally over the Internet (normal phone calls are something else)

Only if you want to make phone calls via skype. A call from skype to skype costs nothing.