Yes, you will.

If you are running a full Bisq node, then every time your node receives a block, Bisq will find all the BSQ transactions within that block and broadcast those BSQ transactions across the Bisq network. Your node can also respond to requests from other users not running full nodes for information regarding BSQ transactions. Essentially, even if you aren't actively trading on Bisq, your node helps to keep Bisq decentralized. Just as if even if you aren't making transactions with bitcoin, your node helps to keep bitcoin decentralized.

You can read more about it here: https://docs.bisq.network/dao-technical-overview.html#infrastructure