Yeah, I've seen these. I had one that involved essentially creating a front end app to retrieve data from a 3rd party api, parse the data, and display it on an html page with interactive controls to let the user filter the data.

So, an HTML/CSS/Javascript test proving that you know how to make an api request, play with data, and set up event handlers.

Which is fine, I suppose, except it was with a 2 hour limit and you had to code everything via a web interface (hackerrank maybe?).

I found it super annoying to work outside of my editing environment without any of the linting tools that I'm use to working with and without even source control to record good commits to jump back to if things went wrong.

The task itself was not particularly hard, but I had to work very fast, didn't finish the last filtering options, and had no time for design -- everything was default html with a few primary colors thrown in here and there.

I don't mind a time-limited coding challenge, but not letting me use the tools I use every single time I code (and would use if I were hired to work there) was very frustrating.