I’m not convinced skill atrophy is an issue.
I am convinced that it’s happening, but I’ve had it happen before when I spent a couple of years in roles where I didn’t directly write code. It took my about two weeks to get back to where I was, and I see no reason to expect it will be any different these days.
Further, I don’t expect I’ll ever need to refresh those skills. The next time I pick them up will likely be simply because I wanted to write something myself on my off-time.