There are but they are all done by companies with an interest and therefore other parties cry foul that their product was not setup to give best performance. fw

There are but they are all done by companies with an interest and therefore other parties cry foul that their product was not setup to give best performance. fwiw, I work on the OpenZiti project which may interest you too as the overlay is a smart routing mesh network (think concepts of MPLS as SW) including ability to have multiple nodes with E2E latency being used to shift paths.