Can I just say that ch4 got me to unironically start liking Sans.
In Undertale he was just an unquestionably good guy who's clinically depressed and sometimes a troll. He was a really boring dude carried mostly by being a mysterious character with shit going on behind the scenes(+ being carried by hype moments and aura)
In Deltarune he's a dick in a way that's unlikeable and Kris genuinely hates him. It's a breath of fresh air from all the fan interpretations that make him angsty or sexyman-evil. It's cool that he's just allowed to suck and be a hatesink for the players.
I like ugly bastard NTR antagonist Sans.