Limiting space and freedom is recommended during training. The challenge you have with Abbie (cute name btw) though, is that she has yet to be spayed, yes? So you won’t have 100% for now.
However, you don’t want to have her confined with no exercise, she does need that. But you may need to use an xpen to keep things smaller.
The poos in the video are territorial poos and so while she’s making herself at home, she will do this to make herself feel more comfortable as she claims every place she is allowed.
You will need to establish “her” areas, and the general areas. Let her “claim” her area so she can feel safe. But you can still encourage her to focus her claiming by putting her poos in the box. Also add some healthy treats in her box to keep her going there. But allow “her” area to have a few poos, so she can feel safe that some place is hers. And it’s also important to make “her” place a safe wonderful place to be. Add toys, a small running space, shelter – like a hidey box, compfy place to lie – just stuff you discover she likes.
You also claim the general area by shooing her back to her area when she poos in the general area, and quickly wipe where she pooed Even the dry ones may have a scent she added from her glands.
Our bunnies never poo out in the rest of the house. They may leave a few stragglers in their bunny room, but not in the rest of house. They understand that is a general shared area, and at the same time, they have a great place they can call their own, so they don’t feel the need to claim the rest of the house. I know not all bunnies are like that, but their personalities seem to be satisfied with this kind of arrangement.
My bunny Jack is 100%, but Rucy, she leaves poos near the box, but that’s because sometimes Jack shoos her out and she just gets into the habit of not going in the box. We are working on that problem though. We will be making it easier for her to get the second box nearby.
There have been times where all hell breaks loose, and I walk in and say…”What the heck?!” It doesn’t happen very often, but if it becomes a habit, then yes, I limit their freedom, and supervise closely their “out” time. It usually takes a few days for them to get back on track. But that’s because they pretty much have it down already. Some bunnies will take longer.
And again, you really are dealing with a challenge, especially as your bunny reaches sexual maturity – it could get worse before it gets better.