No, you don’t have to claim any tokens after the lock period ends, your tokens will be moved to the unlocked section of that pool and thus you will receive the “unlocked” APY rate from that point forward. You can stay in that pool as long as you want. The lock period is only the minimum amount of time you stay in the pool. You can also claim your tokens after it has run out and try your luck with another pool, but remember once you claim and restake, you will be charged the same one-time 10% tax, or just keep it running, that’s is up to you, the APY for your current position won’t change.