@kevindd992002 Traffic from one host ( PC ) to another ( router ) will only flow over one link.
Suggest you look at the LACP documentation:-
https://docs.netgate.com/pfsense/en/latest/interfaces/lagg.html
"Traffic is balanced between all ports on the LAG, however, for communication between two single hosts it will only use one single port at a time because the client will only talk to one MAC address at a time. For multiple connections through multiple devices, this limitation effectively becomes irrelevant. The limitation is also not relevant for failover."
"Using a LAGG does not necessarily guarantee full throughput equal to the sum of all interfaces. In particular, a single flow will not exceed the throughput of a LAGG member interface. Traffic on a LAGG is hashed in such a way that flows between two hosts, such as this firewall and an upstream gateway, would only use a single link since the flow is between a single MAC address on each side.
In networks where many hosts communicate with different MAC addresses, the usage can approach the sum of all interfaces in the LAGG."
Your previous test is irrelevant if you connected the gateway devices directly to the 2.5 and 1 Gbps prots on the client.
