I'm trying to figure out what the correct defend frequency is for the blinds. I've watched several videos, including Janne's from 2015. Since the advent of solvers (in 2015, I believe?), I'm wondering if the numbers have changed in the GTO world?

FWIW, I primarily play .25 / .50, so I'd be interested in the numbers for that level and higher. Also, does the defend frequency change by stakes?

Between the videos I've watched and my reading from various sources, a defend of any 3 connecting cards and a suit is (T-6-5-2) is correct and completing the SB with something like K655 with a suit is correct as well.