My two cents:
DO NOT watch the movie. It is just plain AWFUL. The only thing you miss is the introduction of Ahsoka and that’s really not worth the rest of the hour and 36 minutes of pure sewage. And this is coming from a fan of the Holiday Special!
I wouldn’t recommend the chronological order for anyone as their first run through of the series. Each season has its own momentum and progressively gets better and better with each.