In order to farm, you need to provide liquidity to one of the pools first. Once you have provided liquidity, you will get LP tokens, which you can further stake in the Farms. When it comes to Launchpools, it will let you use your tokens to farm (earn) more tokens for free. With Biswap Launchpools, you do not need to provide liquidity. You will just need to take your token and stake it.
Both investment options have their own advantages. Which one to choose is up to your goals.