Keyword Over Optimization Help on WD

Hello,

I have noticed that even if we maintain a good keyword ratio in the wordpress post, it get lots of duplication because of the meta data when I check the source of the page.
Some of the meta data I noticed which makes keyword overoptimization. (I'm using Yoast)

meta name="description"
meta property="og:title"
meta property="og:description"
meta name="twitter:card"
meta name="twitter:title"
class='yoast-schema-graph yoast-schema-graph--main'>{"@context":"https://schema.org","@graph"

What is the harm of them? And How can I get rid of the over optimization issue because of this?

Thanks

yet no clue for me.