I actually found out that, if you're corrupted enough when you encounter Linus, you can just press the surrender button and then press "no". It'll skip your turn, meaning only your companion will deal dmg. Then, you just pray the RNG God that whoever you are with won't kill Linus before you die from his attacks (make a save right before the fight so you can always retry).
So far, I tried this trick with Max's route only, but I'm pretty sure being corrupted in any route will allow you to surrender, so feel free to give it a try! (I also did it on android, so I am not 100% sure it work on PC/Mac as well, but I don't think there's any reasons it wouldn't, right?).
So yeah, I guess we got some "kind" of wait button if you're a horny boi: Just press Surrender, then "No". Hopefully this will help ya :D