Please can you then explain why the font fingerprinting bug and window decoration/css leak hasn't been addressed since the last 3/4 years since it has been reco

Please can you then explain why the font fingerprinting bug and window decoration/css leak hasn't been addressed since the last 3/4 years since it has been recognized by your devs as a issue? That Chinese girl (sorry don't know your name) explicitly said it's too hard years ago but 4 years later you sat it's possible yet the bug is still left open?