Please don’t get too hung up on measuring latencies!
I know many professional guitar players who use a digital wireless system, a digital effects and/or amp modeller, goes into a digital mixing desk, and uses digital IEM.
Each component in that chain is adding latency, but it’s not perceived as a problem by the guitar player.
So many of us will not have a problem with the latencies in the QC and those who are sensitive to even the lowest latencies will know if the latency is to high when they build a patch, without having to measure it.