How to decide to specify h1 correctly?

Question

Search Engine Optimization

You need to add h1 to the site. Yes, I don't know where. Is it possible to add it and hide it with display: none? (will this affect SEO responsiveness?). Can I take one word from the text in h1?

Answer 1

You need to add h1 to the site. Yes, I don't know where.

Closer to the top of the page.
Of course you can, but why? It's easier not to add it to the DOM at all.
"SEO adaptability" - what kind of science is this?
Push the only h1 on the page to display: none; - horror. Where do you get such thoughts in your head at all?

Answer 2

If you are not for SEO but for the sake of formality, then make it display: none and that's it.