While I didnt have a heavy speaking role i did have a job where i had to speak every day with my coworkers and give an update. At first it was embarrassing, but then i kinda gave up on that control to on whether people sigh or look disinterested. The only thing i can do is communicate in that moment and that involves stuttering. Sometimes disclosing i stutter helps before a presentation, but mainly take solace in the fact that even though you stutter you still get up and present rather than avoiding it.