That was a really weird and uncomfortable chapter. I understand that Tokimori being careless at home is part of the manga's premise, but having the tablet fall with the camera pointed directly up her towel while Sugawa was video-calling his younger brother felt completely unnecessary. The fact that his brother only avoided seeing her private parts because he happened to step away doesn't make the scene better. It just means the chapter came disturbingly close to having him see his brother's girlfriend naked.
Why involve his younger brother in a sexual gag like that at all? The appeal of this manga has always been the fluffy and sexy intimacy between Tokimori and Sugawa. I want those moments to belong to the couple, not awkward near-exposure scenes involving other people, especially his own brother.
It felt gross, out of place, and completely contradictory to the otherwise sweet relationship the manga has spent so long building.