Ok ok maybe I found something, maybe is just a rumour but I'll copy paste this interview here. Is dated March 2019, basically when Oda drew the bath house chapters for Wano
"[Talking about his wife] As soon as I finished drawing the chapter, she stuffed me in the car and we went to the local hot spring for the weekend. Chiaki is too considerate! ... [Talking about the local place]"
"... As soon as we entered the place, I noticed some boys there kept staring at her. She is a stage player after all!"
"I washed myself with other men alone but local springs are still mixed sex places like they once were in the Edo period of Japan! You can see that in the new chapters of ONE PIECE!!!"
"[Talking again about the local place] And when I came back to take Chiaki home, her face was red and her towel was undone, she wasn't wearing it like before! And those same boys from before were still looking and laughing!! What a bunch of perverted minds but boys at that age are the same all! I can't blame them LOL"