The primary purpose of your website headings (H1, H2, etc.) is to create hierarchy and readability for search engines.
Contrary to common use, the purposes of these is *not* to style your website…
Think of your headings like the outline you had to submit before writing a paper in your 11th grade English class. Even if you didn’t write the full paper, the outline should make sense on its own. And, just like a paper only has one title, a webpage should only have one H1.