Some of the PCG tools built for level building in Deadrop - https://midnightsociety.com/ All done in UE5 again and most were recorded with early/unfinished assets.
This PCG wall tool uses a mesh data asset to add the proper meshes along the spline. It snaps corner angles to the allowed angles in the mesh set too.
The wall tools PCG graph. Most of the custom nodes are for snapping the input spline to match the mesh sizes & angles.
A pipe layout PCG tool, similar to the wall tool. It also uses a data asset of meshes and snaps its length and angles to those meshes.
The pipe PCG graph