Comment by mkr-hn

See also: the blinking cursor in Visual Studio Code.

Here's a thread on it with other examples: https://news.ycombinator.com/item?id=13940014

They fixed it, but it was a sign of the times. Everything we've used over the decades had to be re-implemented for the web and stuff like Electron, and the people doing the implementing use such powerful machines that they don't even notice a simple blinking cursor devouring CPU or think about its impact on normal computers.