Yes it does... at least for me. I was unemployed from 2019 to 2021 and barely went out of my house also it was the covid pandemic that also worsened stuttering. I was addicted to video games and during those years my stuttering was really bad. In mid 2021 I got a job and my stuttering became a bit less. In 2022 I got into college but I dropped out after 6 months, it wasn't related to stuttering, it was just because I didn’t like what I was studying (n my country college is public i didn't get loans or anything) Anyway.. after I dropped out I kept working jobs and my stutter became less. Fast forward to now in 2026, I’m still working a job and talking to people every day (I’m a janitor), I can talk to strangers and do somewhat ok.. I get blocks here and there and it's noticeable i have a stutter but it's the way it is. My stuttering is still there and I know I'll stutter when talking to others for the rest of my life but it’s not as bad as it was in 2019–2021. I’m 100% sure it’s due to having less social anxiety and developing more social skills, which back then I didn’t have. So yes, not talking makes your stuttering worse.