Yes, Jumbo frames unlock a LOT of additional performance - which is exactly what we have and need on those links. Using a vanilla wg-bench[0] loopback-esque (really veths across network namespaces) setup on the machine, I get slightly more than 15Gbps sustained throughput.

[0]: https://github.com/cyyself/wg-bench

Its probably a 48port switch and that's a backplane claim.