Yes. A first buy is optional. It happens inside the launch transaction before anyone else can buy, at the curve price plus the normal 2% fee. The tokens go straight to your wallet, unlocked.
You can buy up to 70% of the supply, so at least 15% of the supply is still left on the curve for everyone else. The MAX button in Create fills in the most your wallet can pay after gas and launch fees.
On BNB Chain and Robinhood Chain the first buy is in the Bond step. On Solana it is in the Market step, because you pay in the token you pick there. A large first buy costs a lot, because the price rises along the curve.