The only load balancing protocols are GLBP and MHSRP. Gateway Load Balancing Protocol (GLBP) provides gateway redundancy and load-balancing capability to a network segment. It provides redundancy with an active/standby gateway, and it provides load-balancing capability by ensuring that each member of the GLBP group takes care of forwarding the traffic to the appropriate gateway. Multiple HSRP (MSHRP) load share traffic by using multi hsrp.

"the outbound QoS policy" implies that traffic marking and classification have been done. QoS can only be beneficial when there is congestion (interface saturation).

On Ethernet interfaces the OSPF hello intervl is 10 second by default so in this case there would be a Hello interval mismatch -> the OSPF adjacency would not be established.

Multiple VLANs are in the same port and are edge type that means that the "spanning-tree portfast trunk" command has been issued. without the trunk option porfast command does not work on trunk ports.