<body> classes .home .blog .wp-embed-responsive

<body> has a .home, .blog & .wp-embed-responsive classes applied, why? is there a way to delete those?

These are classes which only appear when being logged in.
You can double check that using a different browser or visiting your site in incognito mode.

Hmm, I checked in incognito but it doesn’t seem to be true.

Please check by yourself: http://cwicly.trcamrraaq-v1p3zv77v4ye.p.temp-site.link/

The “home” and “blog” classes are automatically added by WordPress to enable you to target these specific types of posts (e.g. the ones you specify in the WordPress settings)

ohh gotcha, thanks @StrangeTech