Well I took a two week COMPLETE break from any gym work whatsoever, and I came back and squatted 140 kg with ease (while before that I was struggling mildly). You could argue that the recovery I got during those two weeks was better for my squat than any loss of efficiency that might've happened during that time span.
I could definitely argue that, and I could also argue that you could have squatted MORE than 140kg if you were working up to 90% singles 2-3 days a week during that time
fwiw i took 6 weeks off and bench went from 230x5 to 185x6
obviously 6 weeks is too much haha. but in my personal experience, and i have logged this many times, if i take so much as a single week off from lifting, my lifts drop temporarily.