We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
The Deadlift - the King of Lifts - is not really about Body Beautiful. It is for sturdiness, in my view. You can call it strength, but I prefer to think in terms of sturdiness.
My new weights trainer is more of a high-rep guy (8-12) than my previous guy was (more 5X5). I think it's because it's what he feels I need for right now. All I can say is that he makes it damn difficult. And no, I do not really need to use a mask in my gym. People fake it.
A video is not really a substitute for a trainer who can critique your form right at the moment, but this guy is good. Best mental trick: Push the floor away from the bar.
I've certainly seen far worse. He hits on several of the points Rip makes in his description of deadlift technique. He's a bit inconsistent in how far the bar is from his shins at the start of the pull, but other than that, no criticism from me. For completeness, definitely go to the link supplied by DougT.