There is a plan [0] to add custom columns to Trippy and then to add various jitter measurements [1].
Thanks for pointing out the above RFCs, I'll take a look at those and see if they make sense to add to Trippy.
[0] https://github.com/fujiapple852/trippy/issues/757
[1] https://github.com/fujiapple852/trippy/issues/39