Does this mean that there are unskippable straight scenes in the game?
Or is it a case where every scene is optional (depending on player choices), and the toggle is just to disable choice that would lead that way so the player doesn't accidentally click the wrong choice and get blindsided?
Because my usual inclination would be to just play through and let my choices dictate my fate without using the toggle, but if I'm trying to do a pure lesbian run and the game starts throwing multiple unavoidable straight scenes at me, I can see why the toggle might be preferable.
This isn't entirely true. Platonic Love (friendship) and Romantic Love (romance) are two different things, and it's entirely possible to be in a romantic love relationship without sex. Asexuality is definitely a thing.
Though even beyond that, when we're talking about kinks in porn games, it's certainly possible someone might get off more from scenes involving genuine affection, hand-holding, and the occasional cuddle way more than having every scene be unbridled savage feral lust.