I've been familiar with borax since my mother used it 50+ years ago when I was a kid. I did side by side testing on some stinky mildewed cloths and sponges. Oxiclean removed the odor more quickly and more completely than borax. Details of the chemistry are similar between them. Borax is way cheaper than Oxiclean.

I prefer my clean clothing to have no added odors so eschew scented products.