If your articles are really high in quality, then the length does not matter much.That said, I think it is important to have a variety of article lengths on your website.
My personal research indicates that everything longer than 2,500 words is a waste of time. In fact, I think it is detrimental.Keep your articles between 300 and 2,400 words long.
I think most of your articles should be around 600 words or so. Having lots of 1,000 word articles is certainly a good thing.Having a few article that are over 2,000 words long is important too.And I think it is perfectly normal for you to post the occasional 200 word post.
Maybe have a post here and there that is just a youtube video. If it were me, I would make sure that I made the video, and that the post was really useful or entertaining for my readers though.
The bottom line is that you want a variety of article lengths, and nothing longer than 2,500 words. If you do that then you are wasting your time, in my opinion.
That said, you do not want to create a blog that has 1,000 articles on it and every single article is between 600 and 620 words long. That is a red flag to the search engines that you might be a content farm.
Mix it up, keep it real. Keep it useful.
If you provide real value to your readers then the length should not be of primary concern.
Each article that you publish should have worth unto itself. Each article should provide enough value so that it justifies its own existence.
For example, this article here is under 400 words long, and yet it gives actionable, concise, and useful information. No need to be long winded just to try to hit some imaginary “word quota.” It is more important to be useful than it is to be long winded on purpose.