No. You decide which bills and decisions you want to vote on. In Federal Parliament, there may be an average of one bill per day. You will not want to vote on all of them. You will likely vote on bills and decisions that interest you or you have experience in. For example, nurses will likely vote on health bills. You can search or set up notifications for the bills and decision that interest you on our system. PD politicians will vote with the people even if only one person votes so if you wish to support or block a bill your vote is important.
Please remember, many bills do not proceed past the first or second readings or senate hearings. In the beginning, you also can't vote on appropriation, supply and confidence bills, and tariffs. So the number of bills you can vote on may be much less.