Do SkinnedMeshRenderer.BakeMesh useScale workarounds exist for older (2019.4) versions of Unity?

I'm in 2019.4, and I'd like SkinnedMeshRenderer.BakeMesh to behave similarly to the 2020.3 version when *useScale=true*. I know I can't do t$$anonymous$$s by passing a parameter to the function, because the parameter wasn't yet implemented in 2019.4. Is it possible to recreate the functionality by applying some matrix multiplication to the mesh before calling BakeMesh? and if so, what operations should be applied?

to put t$$anonymous$$s in code, I basically want my code to behave like t$$anonymous$$s:

 // 2020.3
 SkinnedMeshRenderer smr = ...;
 Mesh targetMesh = new Mesh();
 smr.BakeMesh(targetMesh, true);

w$$anonymous$$le being limited to options where I can't pass true to useScale. Somet$$anonymous$$ng like:

 // 2019.4
 SkinnedMeshRenderer smr = ...;
 Mesh targetMesh = new Mesh();
 
 Matrix4x4 magicScaleMatrix = ???
 for(int i = 0; i < smr.sharedMesh.vertices.Length; i++)
 {
     smr.sharedMesh.vertices[i] =  magicScaleMatrix.MultiplyPoint(smr.sharedMesh.vertices[i];
 }
 smr.BakeMesh(targetMesh);

is the second option, or somet$$anonymous$$ng like it, possible? If so, what does magicScaleMatrix look like?