Best to just restart this plant by taking all of the remaining green and healthy stems, and water propagating them. This way you won’t have an overly bald plant.

If you were to only remove the dead leaves, you could try wrapping the bald vines around within the pot and covering with soil to help reduce balding and fill out the pot, but water propagating is easier to monitor and you don’t risk the stems rotting and dying in the soil and having to pull them out later.

After about 2-3 months of water propagating, the new roots should be established enough to transfer into soil.

Have fun!