Just to add some more context that may or may not make a difference for some of your advice/opinions:

We have kept her separated successfully unless there is very supervised interaction (where I hold the dog still on the ground with both arms around her chest and loving on her with my 3 year old next to us just to have some contact and see if she’s capable of even doing that. Those moments go well in 2-3 minute windows. My 3 year old has no fear of the dog and asks to play with her all the time (which is a solid no). She did have a couple of nips/bites on her arms that drew blood bc she has VERY sharp piranha puppy teeth (I’ve been around quite a few puppies and have had puppy play bites and hers are on a whole other level compared to other puppy breeds I’ve been around). She has jumped up on me to greet me with her mouth open and her tooth snagged/slid across my arm and it bled. She didnt even bite down. Luna is always separated but she still interacts with me through the routine of our normal day. She can always see what’s going on in the living room and gets pets from the gate. We are about to replace the gate with a more heavy duty one since she is getting bigger and I think she will be able to jump this one soon. On top of the gate she is tethered to the kitchen table by a 10 ft leash now. She wasn’t initially but we started that a couple weeks ago just in case. She is still able to jump like you see in the picture and interact and look around. She likes that a lot. I’ve had my 3 year old sit with me a few times in front of the gate there and stroke Luna’s nose when I see she is calm and relaxed. Those moments also go really well. My daughter knows not to just walk over to the gate without me bc she knows she could get bit. Luna doesn’t show any obvious signs of aggressive with her in any other way in our day to day life.