are there any built in nodes to help symmetrize a mesh after topo transfer?

also
are there built in nodes to transfer say, half a face's topology to a target head
to clean a blendshape? (so if a topo transfer was like a full smile, then you want to just make a left smile, I didn't see a way to do a blendshape with a weight mask)

Here's a very contrived example using a torus and a roughly edited version of it.

ahh, the mirror node breaks the UVs on the object though
like if there was a way to mirror without the clip node would be what i was hoping to do

You might be able to further fix that with Attribute Mirror for the uv attribute.

ahh interesting I'll have to look into that thanks!