The useful question is not “Which format wins?” It is “What does this child need that the current setting is or is not providing?” A strong school phonics programme can be enough when teaching is systematic, the child is responding to it and taught knowledge is transferring into unfamiliar words and connected reading. Targeted online support may add value when a specific decoding gap persists and the child needs more individual response, feedback or carefully levelled practice than the current setting can provide.
Neither setting should keep adding beginner phonics indefinitely when decoding is already accurate and the main difficulty has shifted to fluency, vocabulary, comprehension or another area. Delivery format is therefore a child-fit and implementation decision, not a universal ranking.