Exclude current post from query loop

functions.php

<?php

/*
* In this example, we are excluding the current post from a list in Generate Press query loop
*/

add_filter( 'generateblocks_query_loop_args', function( $query_args, $attributes ) {

    // apply filter if loop has class: recent-posts-grid
    if (! is_admin() && ! empty( $attributes['className'] ) && strpos( $attributes['className'], 'recent-posts-grid' ) !== false) {
       
        $query_args = array_merge( $query_args, array(
                'post__not_in' => array( get_the_ID() )
            )
        );
    }

    return $query_args;
  
}, 10, 2 );