Well you need to sand that right back to smooth.

Get like a 200mm wide taping knife or scraper

Apply a finishing coat (top coat) enough so there’s no visible inclusions (little divots like you see in photos). Don’t be afraid if its much bigger than the hole cause it’s easier to sand.

Sand that back and really feather it out so when you run your hand across ot you can’t tell where the repair stops and the door starts.

Now you have to paint the entire front of door because it will never match anyway. Use a foam roller and probably a semi gloss or satin paint(I can’t really tell from photos but paint guy at Bunnings will know)

or just wear the cost from the rental agency? Door repairs line this are easy to spot in an inspection so it’s gotta be good.👍