Bananas have seeds. We've just bred them for hundreds of generations so the seeds are small and so soft you don't even notice them.

Bananas have seeds, they're just incredibly degenerated in commercial bananas. Next time you have one, break off a chunk and count the black specks inside. Each one would've been a seed if not for generations of human intervention.

Here's a website with a picture of a banana with seeds

https://sciencemeetsfood.org/rise-fall-bananas/