"Introduction" as h2?

Hi, fellow Redditors.

I was just doing some research for one article of mine and I stumbled upon a question. I have used the H2 tag on "Introduction" in all my articles until now. But I noticed that not many blogs do this. Rather, they write the opening separately and then follow it with their first headline.

Does this have any impact in terms of SEO? Is it better with or without "Introduction"? Or it doesn't matter and I just have stupid questions?

Thank you!