No, its totally different which bounty is much harder than airdrops because of the task you do in bounties unlike on airdrops which you would just need to sign up yourself to claim those free tokens and you should avoid those airdrops that do ask some document because its not really right for them to demand because you are not an investor and talking between on potential earnings then theres no doubt Bounty will possibly give you the opportunity but the hard thing is on how to spot the potential project or bounty program.