We questioned in the first chapter how Boruto activated the BG in his scarred eye without the veins appearing on that side of his face.
In this chapter and the last chapter, the new artist has drawn both Kinshiki and Momoshiki, in multiple panels, having their BG eye active without any veins on their eyes. If you look carefully at their eyes, there is sometimes a ring in the iris that only appears when the irides bulge while the BG is active. However, there are other panels where their eyes are plain and without pupils, also without veins bulging around their eyes.
Based on when it appears (and in who) it seems the new author added a partial or passive activation form for the BG. For Momoshiki and Kinshiki, it can easily be that they have such high chakra levels that they can activate the eye without any extra input/effort or blood flow. After Momoshiki eats Kinshiki, his BG passively activates and stays passively active during the whole time we see him in his......whatever his new form is.
I specifically think it is passive activation rather than full activation for two reasons. First, when Kinshiki was surprise attacked by the mud-villa-china-lady he had his irides flexed without having the veins present around his eyes. So, if he had full BG vision, he shouldn't have been confused at all by her appearance. He should have seen her under the mound of dirt that was rising up and just tried to flatten her before she had time to emerge and throw a punch. Second, when Momosiki looked at Boruto and Naruto to confirm that Boruto had not received any of the fox's power, Momoshiki used a fully activated BG that made the veins in his face bulge. If the passive form granted full BG penetrative chakra vision, neither of those scenes should have happened the way they did.
I'm not even sure that Momoshiki and Kinshiki are activating their BG passively on purpose, the eye may just be responding to their increased chakra level the same way a normal person's eyes consume more energy and chakra if the person is looking at something very hard (a normal person in Naruto)
However, for Boruto activating the BG eye with his cursed seal, I think that is a purposeful, full activation of the eye. What all of this shows us is why Boruto does not have veins bulging in his face. It is because it is possible to activate the BG using chakra alone if you pump enough into it.
Also, Momoshiki used Full Body Blow to blow everything up and cut down the tree. Add one more to the pile of Gentle Fist/Hyuuga easter eggs I've found laying around the manga.