JSFiddle - React, Tailwind, and code Playground

HTML

<div class="text">Новый</div>
<div class="text">В работе</div>
<div class="text">Новый</div>
<div class="text">Заквершен</div>

CSS

span {
  color: red;
}

JavaScript

document.querySelectorAll('.text').forEach((el) => {

  let html = el.innerHTML;

  html = html.replace(/(Новый)/, (full, a1) => {
    return `<span>${a1}</span>`
  });

  el.innerHTML = html;
})