AvE is fun to watch, and full of cool insights into the underappreciated details of tools. but you've got to take his reviews with a few grains of salt. He's coming at it from the perspective of somebody who buys tools to use in heavy industry. If you're buying a cordless drill to hang pictures or maybe build a desk or a fence once a decade, the things he derides as being "not very skookum" will likely last you a lifetime.
Maybe you actually do need an angle grinder rated for an 8-hour duty cycle. But don't buy one just because a YouTuber told you you do. That DeWalt is probably fine.
This is the exact same method I've used to buy tools for ages. Still using the same 19€ corded hammer drill I got 20 years ago to punch some holes in a concrete wall.
On the other hand, my cordless drills is the more skookum version after the cheapo one crapped out on me mid-drywall.
Maybe you actually do need an angle grinder rated for an 8-hour duty cycle. But don't buy one just because a YouTuber told you you do. That DeWalt is probably fine.