Vocals can be unforgiving when it comes to recording time. As complex as they are, listeners are intimately familiar with what a voice should sound like. Because of this, a bad vocal track or mix can stand out like a sore thumb. Starting off right with a great vocal recording will make the mixing and mastering processes much easier. Remember, there are some things that just can't be polished.
You can read the full guide for recording vocals in a home studio here: https://www.musicclout.com/contents/article-122-recording-vocals-professionally-in-a-home-studio.aspx