She only got two cutscenes -- one in Eposide #2 and one in Eposide #3
No, Getting Plantium for allows you to find out where Sly is. Inspector Fox only gets to reover two cimatics -- one midway in Eposide #2 and one before the big job in Eposide #3.
also, i am glad because you are allowed to play as her after you do her first job, thanks goodness!