yes! i am familiar with the STEP import extensions for blender, ive tried about 3-4 of them. they all have weird quirks, and ive even chatted with a few of the devs of each extension to fix bugs that were present. i ultimately landed on one from the blender extensions page, but it still gave an undesired topology count, and incorrect normal lighting so i opted for obj exports instead.
i could try making my own STEP blender extension but lets be honest, the elephant in the room is shapr’s exporting needs improvement. usdz exports are bugged, and i suppose it needs a little better support for high radius items like i’ve just discovered.