I have a mild stutter and I hide it really well, most of the time. I also have social anxiety, so I didn't date that much really. I met my current girlfriend (and future wife) on a dating app and we've been together for almost 7 years. She's also the only girl I told about my stutter and she didn't care. Before that, no girl ever mentioned my stutter, but as I said, I try really hard to not show it. It did probably affect my confidence, but never really caused problems directly, with dating. Even, if you have more severe stutter, it shouldn't really matter for your date. If the person is bothered by your stutter, it's best not to date them. And there are plenty of people, that won't be bothered.