As the owner of a house cleaning company -- I can tell you there is no good robot floor vacuum for pet hair. They just do not have the powerful motor needed for suction to pull pet hairs out of fiber (carpet) and for longer pet hair, it will render the tiny bristles on the machine, which are small, ineffective before it completes it's program by wrapping around it. I am sorry! But a great quick stick one that works amazing is the Miele Triflex Cat & Pet . It's super fast, easy, quick, does an amazing job, and it switches from hardwood to carpet / rug automatically. It's a thing of true beauty!
My family has a chocolate lab that sheds constantly! We purchased a Roborock E4 Robot Vacuum Cleaner. It has been a game changer. It does a great job cleaning up all the dog fur on our main living level. I even notice less dog fur on the second floor because it's no longer getting tracked up the steps. I love how user friendly the app is as well.