You could always try command picture hanging strips - I’ve had great success with stuff weighing more than 1 kg. They can theoretically hang up to 5.5 kg so you should be fine. Each time I got them off the wall without damaging the paint too so bonus for that.
Glad to help - I was surprised as well that they really didn’t take off even the cheap paint in my last rental. I had some quite heavy framed mirrors stuck up. When the time comes you have to be a bit careful pulling them off - follow the instructions carefully when doing so. You have to push down on the bit stuck to the wall quite hard and then pull the tab along the wall until it stretches right out and it all comes off perfectly.
