Lightbox Effect Gutenberg?

Hello,

Now I’m currently using WordPress 5.1 with Classic Editor and Disable Gutenberg plugin active.

I recently disable Gutenberg and back to Classic Editor because somehow every image on my post it’s don’t have lightbox effect. So I disable it and edit all images from there.

I’d like to activate Gutenberg full, but my question is, if I disable the Gutenberg and deactivate Classic Editor plugin, will the image on my post still have lightbox effect? Because it’s important to my blog.

Thank you

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