E.g. the Klarna Headline is pretty distinct, but I've never seen it before. The four other Klarna fonts are super generic. Also why do they need five different fonts?
Mostly I think these custom fonts are a waste of money. If you ship software that needs to include fonts, and you don't want to pay a license, it makes sense. If you do it because of "corporate identity" it seems pointless.
It's still an 80 billion dollar company in market cap, so there is that.
Also I'm guessing it's so they have another means of attack on knock off products that directly copy them.