My website has pages with links to videos. Google sends traffic to these pages and in the SERPs it shows the a video thumbnail next to my result. The video thumbnail chosen is the first video link on the page.
I just realized that these pages have
<meta property="og:type" content="video"> in the head. I don't really know why I set the content to video a long time ago when these pages are actually content="website".
But Google is ranking them despite the type being content="video".
My question is if I change the type to content="website" on these pages do you think my rankings will go up or down? Is it too risky to change it at this point or is what I've done a technical mistake and I should fix it? And, if I change the OG tags on these pages to content=website instead of content=video will I lose the image thumbnails next to my SERP results? I think the image thumbnails probably help my clickthrough rate and it's reasonable to have them since the thumbnail video is on the page above the fold.