Is it not supported to enable breakpoints for ESP8266?

If I press the Upload button, my code runs, but it does not stop at the breakpoints that I set by clicking on the gutter of the editor. I have searched the web for a method, but all I found was this link ( PlatformIO ESP8266 debugging ) with the Team saying “We are working on that.” That was 3 years ago. Is it still not possible?