Background
When Let's Go Pikachu & Let's Go Eevee launched, the games added back an old forsaken property to various Pokémon, namely sizes. To be specific, height and weight. While this property remains as a core part in data structure of Pokémon past Let's Go Pikachu & Let's Go Eevee, it will go unused in Sword & Shield and Brilliant Diamond & Shining Pearl (while the values for it are still generated and assigned by those games)
Well, if we are being technical, height