i personally just find it less stressful if im up front about it. for example, when my bf and i first started dated i let them know before our first date that i had a stutter and luckily they were very understanding about it and it made the first date much easier in that regard bc i was less worried about it when we were talking. i’ll sometimes mention it in job interviews too if i feel it’s relevant, and again just makes me feel more at ease