There are still incurable diseases and cancers some are immune to and some are not due to genetics.

Yep, this is more or less what I meant by post evolution. We are clearly still changing by natural means, but for most of the existence of all living things in the world, change occurred by evolving. Humans change by using technology to intervene, and the rate of change of our intervention mechanisms is so massive that we’ll likely not notice evolution in any meaningful scale ever again.

Consider Tinder profiles saying they'll only date someone over 6'. Sexual selection is one of the most powerful selective pressures.

Evolution is insanely slow and it will take a while for our bodies to catch up to us but it is a constant force that you're never "beyond". The only thing that might count as an end is detaching ourselves from the phsyical bodies that facilitate natural evolution (i.e. ascending to beings of pure energy or whatever) - and even in that case, we'd probably still constantly tweak and improve our existence, we just will have moved beyond natural evolution.

I think there's a thought that eugenics was a natural evolution of evolution[1] - and, as a society, we generally find that rather repulsive and don't do it... But just because we're aware of ways we can artificially speed up the process doesn't mean the process isn't continuing.

1. It's a thought, or conception - this isn't me endorsing eugenics in any way. I just believe that, mechanically, it could achieve a similar result just accelerated and with a lot of really important moral questions.