Need context here imo. If you’re going to be completely risk averse, then sure. But there’s a whole lot of pleasure and even more enjoyment from sucking without.
Is this someone you’ve known for a while? Do you trust them? Right, I think you approach this differently in either case. If this is a curious friend or someone you are experimenting with and it’s their first time, you should be ok to go without one. If you trust them and they are free of STIs or not sexually active, I would say enjoy the full experience.
If this is some rando off of a dating app for a one time thing then, yeah, maybe you take the extra precaution. All that said, I don’t know too many guys that wrap their dicks for oral only. Whether that’s a mistake or not, I’ve been given weird looks when I’ve asked hookups to wear one for oral.
Do what you are comfortable with.