The Spanning tree is a switch technology for the switch, so it is not something to do
with the network adapter.
The I217 ethernet controller does support teaming, you may refer to the datasheet
We are still checking on the I211-AT. Will update the post once there is any finding.
Good day. The Intel Controller I211-AT is for single-port GbE LOM designs, it needs to be teamed to another network adapter(which can support teaming).