[Support request] Prevent WordPress from Updating the Modified Date

I am using the GP post meta template, GP headline block and dynamic data, displaying the updated date instead of the published date. What I don’t like is that the updated date constantly changes, even when only minor changes are made to the post, such as adding a category or a tag to a post etc.

I found this snippet on the web, which is supposed to prevent WordPress from updating the modified date unless changes are made to the title of the post:

add_filter( 'wp_insert_post_data', 'do_not_change_modified_date', 10, 2 );         
function do_not_change_modified_date( $data, $postarr ) {
    
    // return if post ID is zero

    // this indicates that a new post is being processed

    if( ((int)$postarr['ID'] === 0) || !$postarr['ID']) return $data;
    
    // get the post

    $post_befor_update = get_post($postarr['ID']);
    
    // return if the modified date is not set

    // this happens in revisions and can heppen in other post types

    if( !isset($data['post_modified'])              || 
        !isset($data['post_modified_gmt'])          || 
        !isset($post_befor_update->post_modified)   || 
        !isset($post_befor_update->post_modified_gmt)) {
        return $data;
    }
    
    // return if changes were made to the content or title

    if((wp_unslash($data['post_title'])    !== $post_befor_update->post_title)) return $data;
    
    // change the modified date back to how it was before the update

    $data['post_modified']      = $post_befor_update->post_modified;
    $data['post_modified_gmt']  = $post_befor_update->post_modified_gmt;

    return $data;
}

Is this save to use long-term? I would add it with code snippets and let it run permanently.