How to bake one frame of animation data into a mesh to create a new mesh?

hello folks, I’ve tried to search for how to do this, but unsure if i cant find it because I dont know the proper terminology or its something you need to do in modelling software and not unity

but essentially what im trying to do is this:

I have a rigged model with animations in unity, the Mesh data itself is always in its t-pose without any animation data, im trying to create a variation of this mesh, that is posed as it would be in the first frame of its standing idle pose, so not the tpose, but a natural stance, to use as a Not animated model, like a statue

so it doesnt need to be animated or move or have a rig or anything, it just needs to be a mesh that has that pose baked into it

Is there a way to do this in unity? or i need to do this in blender and re-import as a new mesh?