Bounty isn't exactly dead, but it can't bring big rewards almost no more. A lot of scam and trash campaigns so if you want to participate in bounty campaigns first choose projects managed by reputable managers on the forum and always do your research before you join. Avoid wasting time with pointless campaign battles.
An experienced bounty manager will not guarantee any profit. It only reduces the risk that a bounty campaign turn in to scam.
The most important thing is the bounty pool and its allocation.
Social media campaigns have long been flooded with bots, so they are the least profitable. However, with good allocation, you can still make decent money from video or article campaigns.