Have you tried just doing the swaddle wrapped around her torso with her arms out? We did that with the nested bean swaddle when transitioning. Basically a sleep sack but she will get the snuggle feeling around her torso while having her arms out. Just a thought! My girl was in the Merlin sleep suit after that for a few months.
Sleep sacks are pretty great but it’s going to a rough transition and it’s gotta happen at this point. You’re probably in for a few bad nights but you have to stick with it
Just go cold Turkey at this age. The transition will be rough for a few days for everyone. But just one of those things you gotta push through. Maybe give her a lovey to help?
to be honest swaddling should have stopped once baby could roll over
I really think you’re just going to have to go cold turkey at this point. Like someone else mentioned for safety swaddling would have normally been gone as soon as they showed any signs of rolling over. May be a rough couple nights but she will get used to it!