Should "X-UA-Compatible" be used for new websites?

I don’t often create new websites, but when I do, I always try to start out with simple HTML & CSS. @jwilkins.oboe’s article Basic HTML5 Template: Use This HTML Boilerplate as a Starter for Any Web Dev Project is a great bare-bones HTML template and also an excellent refresher. (Thank you!)

When I got to the <meta> header

<meta http-equiv="X-UA-Compatible" content="ie=edge">

I remembered the Microsoft announcement a couple months back that Internet Explorer is officially dead. Drupal 10 [already stopped using it], and I presume that other projects are following suit.

It is not a real inconvenience leaving it in, but wonder what your thoughts (and practices) are about this.