But would just not taking them after your workout be enough? After all, the recovery/adaptation process takes days. So if cold immersion interferes with the Hypertrophic process in any way, then where would it logically fit in? I haven't abandoned the cold showers. I still no longer do them on my workout days, but I also decided to cut their time to between 80-90 seconds to mitigate any possible downside that may remain by doing them. Not exactly a move based on any science on my part; just a compromise of sorts. And, yes, I know, I'm a mere dilettante by your standards.
I haven't seen the information indicating to avoid them all together if you are working out and looking for the hypertrophic process to work. I would estimate it is at least 12 hours between my workouts and cold shower. I am probably going senile, but I actually like the cold showers now, although some days not as much as others.
It's a love/hate relationship for me. I'm drawn to them on my non-workout days. Reminds me of what the pro wrestler said when he was asked why he kept banging his head against the wrestling ring corner pole: "Because it feels so good when I stop."
No, I just do a 90-second cold shower on my non-workout days. Spring to fall, I do a little over 2 minutes. I know that the ice bath is more extreme, but a combination of cowardice and laziness inhibits me from going there.