The logic in the DB_Command::esc_like() WP polyfile is not robust:

The first conditional actually includes two requirements, but the else clause still fails for one of them.

For the first conditional to pass, the method needs not only to exist on the $wpdb variable, for this to be possible, $wpdb also needs to be a valid wpdb instance.

If $wpdb happens to be null for whatever reason (like calling DB_Command::esc_like() too early in the WP execution flow), then we'll call the deprecated like_escape() (and throw a notice), even though we might be on the latest WP version.

I'd suggest to throw a WP-CLI error inside of this polyfill if $wpdb happens to be null, to get rid of the notice and point to the correct issue.