It’s not hard to imagine a dev being brought up 5 years ago into a React world, with JS in the backend and something like Vercel or Netlify to deploy their app.
Someone like that might be entirely uncomfortable when dumped into a plain old Linux server, and would definitely take longer than 40 minutes to even get their head wrapped around what’s going on.
That’s not a knock on them - they get their job done, and to the business that’s all that matters. But yeah, just trying to, I don’t even know, empathise? Try to understand? Who knows. It’s just a different world now.
If a grown up person (who is presumably making a good money in their React/JS thing) can't figure on how to install a web server in 40 minutes (with all SO, Google and a bazillion of articles on how to do so) then...
Like come on, twenty years ago you still needed to get your ass off the chair and go to the bookstore, find and buy a proper book and actually read it. Now you just need to type "Ubuntu 20 install webserver" in to the search and voila.
If you or any of your developers don't know how to do that, you/they should seriously seriously spend the 40 minutes it takes to learn.