How to download assets with its ID as file name?

I've been using https://assetdelivery.roblox.com/v1/asset/?id, but the file name is not the same as it's ID like 80690060423383. How come how come BT Roblox Extension does it?

https://preview.redd.it/5bovxw4mcv5g1.png?width=278&format=png&auto=webp&s=e2a4cdfdd8d27a0a9770f5cdbe016d59f9a7f143

https://preview.redd.it/o1y0vt3ncv5g1.png?width=320&format=png&auto=webp&s=2af031d2993a5e6ee856424e5de3db6663aa0877