Confused about L1 from/to L2 transactions

Does sending ERC20 tokens between L1 to L2 cost normal L1 gas? And then L2 is where the cheaper transaction fees come into play?

FYI I am trying to split a hackathon reward across three people. For example, if I have 600 LINK in a wallet, can I send 200 each to two others addresses?

And I promise I tried searching for the answer, but it just got me more confused.