moveAbove it still working and I am using v23.
I hope abode will sort this mess up soon.
I came across this same problem Uncaught TypeError: Cannot read properties of undefined (reading 'id') with details noted in this gist reproduce an error for layer.move(groupLayer, 'placeInside') · GitHub
in my case removing existing and creating new layers was an option so I simply selected the group layer before creating the new ones, which results in the new layers going into the desired group layer;
I was able to bring this to the attention of the group that works on it so hopefully it’s resolved soon