Make Transfer Mesh Data effective between grease pencil and meshes for vertex groups

I was wondering if there's a way to set weights of VG of grease pencil more consistent because automatic weight assigning of grease pencil works similar to a bone envelope, so an alternative that works with meshes of any kind is to first set automatic weights to a proxy object with a mesh, then transfer the vertex group data to the target object that have issues with hot bones or gives undesired results. If instead, the target object is a grease pencil object this will allow setting weights automatically in a controlled manner, it should allow selecting one grease pencil layer to transfer the weights or all layers

My use case will be in drawing grease lines over a rigged mesh.

In the example shown the transferring is done through a data transfer modifier for illustration purposes, but other operators that depend in transferring data like Objects>Relations>Transfer Mesh Data or transfer weights in weight paint mode have to work too