The gdb experience is not 1:1 with windows debugger, so you probably read about that.

Also the gdb had two different implementations in TheIDE before (you could switch between in the settings), I'm not even sure if this is still a thing in current version (or if it was reduced to single implementation again).

But generally the debugging under linux should work, although maybe slightly limited/different compared to current state under windows with windows native debugger.