Blog Post showing only in mobile devise, It’s not showing in PC browser
So your concern has changed quite a bit?
My concern issue is this all post must be show in Blog page
Review your settings in your dashboard. Make sure you have your “posts page” and “front page” settings assigned properly. You are also using a commercial theme, which I’m sure has many features for setup and display. If changing or fixing the settings for “front page displays” and “posts page” in your dashboard won’t fix it for you, then consult the documentation that came with your theme, or contact support for the theme where you purchased it. Commercial themes are not support here in the forums.