Binance, wirex, crypto.com and others offer credit cards backed by cryptocurrency balances. Sure, technically, they sell the crypto for fiat as you use it, but to the user it’s the same as spending the cryptocurrency directly.

And there are at least some online businesses that accept crypto, certainly security focused services like Mulvad and ProtonMail but I’ve occasionally seen it for other SaaS products too, although not too often.

On the contrary, nowadays you can buy several types of gift cards with crypto[0].

[0] https://www.bitrefill.com/buy/usa