You would need to "activate" your validator by depositing 32 ETH, and it takes a bit of time after the deposit is made before it will transition from pending to active.
Also, at the present time, it's a good idea to run an ETH1 node locally, with your activated validator set to check it for blocks added to mainnet. You could instead use a free or paid Infura endpoint, but the extra latency may prove problematic.
Once activated, your validator would begin to earn rewards for making attestations and block proposals, etc. The APR is currently around 6% - 10%, depending on your validator's performance. Here are some stats for a validator I chose at random:
https://ethereum.org/en/eth2/deposit-contract/
Also, at the present time, it's a good idea to run an ETH1 node locally, with your activated validator set to check it for blocks added to mainnet. You could instead use a free or paid Infura endpoint, but the extra latency may prove problematic.
Once activated, your validator would begin to earn rewards for making attestations and block proposals, etc. The APR is currently around 6% - 10%, depending on your validator's performance. Here are some stats for a validator I chose at random:
https://beaconcha.in/validator/72727
https://beaconscan.com/validator/72727
Running an unstaked/unactivated validator is not a bad thing to do, but there is no financial incentive to do so.