You may have heard of reach advantage in boxing and other striking arts. Longer armed fighters certainly have an advantage at “outside boxing range” where they utilise long straight punches and use footwork to control the fight and keep the opponent at bay.
A Shorter armed opponent will need to work harder and possibly be more durable to get “inside” on an opponent using head movement and “positive defences”, where we simultaneously defend a shot and take ground putting pressure on the other fighter. Likely taking shots on the way in means they will need to throw more volume when they are in range to make up the score.
Developing a style that suits your build and attributes and learning how to use these against opponents you are likely to meet is a big asset once the basics have been learned.
Application is the hardest part of combat sports, hours and hours of drilling should be done to develop these skills & game plans developing your individual fighting style.