Coolify is your best option here. It has preview environments and lots of other built-in features - just the cost of your server if you're savvy enough to get things setup yourself. https://coolify.io/
While I agree that avoiding/ignoring politics isn't helpful to anyone, it still doesn't have a place at work. My view is, people are going to disagree on politics, and therefore it just gets into a debate, or worse, an agrument at the office or in chat and makes the whole situation more ugly than the manager and/or employer wants to have to deal with.
Why would you limit the tool to strictly be for React?
"As per my limitations, I am designed to work specifically with React and TypeScript/JavaScript only. I cannot provide direct conversions to plain HTML/CSS or other frameworks."