I know a few people who used to work for Apple. The reason a lot don't say it though is because if you do people automatically assume you had something to do with whatever feature they don't personally like, and you get berated about it.

Deltarune didn't exist yet. It's an undertale ripoff.

Which is very telling, tobyfox released a whole game on his own. While this " I worked at blizzard, BTW" tool hasn't with an (allegedly) entire company around him. He's a grifter, he scams people around him to profit off of other's work. That's all he does.

Given that it didn't exist yet, more like an Undertale rip off