Renuvion Skin Tightening - is a two stage approach for arm skin tightening common?

I recently had Renuvion with VASER lipo to address loose skin and fat on my arms after significant weight loss. My doctor suggested a two-stage approach: the first stage focused on fat removal and initial skin tightening. The second stage, planned for 3 months post-op, will involve further tightening through a small incision under the armpit where skin will be stretched under local anesthesia. Has anyone heard of or experienced this two-stage approach for arm skin tightening?