Thanks to Tim Curry’s intensely memorable performance from the 1990 version, the young actor had a high bar to clear with his turn as the famed horror villain, and I can tell you having seen the full movie that he absolutely does, even when working with very familiar material.
That being said, the real take away from this scene is the excessively terrifying presence of Bill Skarsgard as Pennywise.
Despite his death, Georgie (played by Jackson Robert Scott) does continue to play an expanded role in the story of IT, as he is a recurring presence throughout the film psychologically torturing his big brother, Bill (Jaeden Lieberher).