First of all airdrops are 100% waste of time . They sound like easy money but truly they are useless. Many of them are scams and even which are true would give you pennies so they are total waste.
Bounties also there are alot of scam projects, but bounties of good projects can give you some decent amount.
Yes, I don't deny what you think, but the reality is that airdrops are still a very easy job for newcomers to access the field.
I also participated in some airdrops, even though it wasn't huge sums, I'm glad they paid it anyway. But anyway, I personally don't think it's necessary to try to make a lot of money from the airdrop, because the field is so vast and there are so many ways to generate income, dyor everything about it.