yes that's correct. Currently, many see that bounties or airdrops are no longer worth it. however, I think not everyone thinks like that. maybe now the rewards from bounties and airdrops are not as much as before. however, there are still some bounties that are still worth following, one of which is as you said, namely bounties that are paid using stable coins. another bounty is a bounty that pays using the token they own, but the token already has a market, at least DEX and has volume, and uses escrow. maybe many bounties don't have a market and don't use escrow, but sometimes they offer bigger rewards. Unfortunately, such bounties carry big risks, such as not being paid, worthless coins and so on. Apart from all that, the bounty may still be worth it, it's just that it takes research to follow it. for airdrops, I haven't participated in airdrops for a long time, but I think there are still quite a lot of people who make money that way.
conditions must have been different when the ICO hype used to be. Many of the bounty campaigns pay with tokens that are not registered yet, but they are quite high in value. now the situation is different. still equally crowded with participants. but looking at the value of the tokens is sometimes very bad. even before bids were traded many projects were dead.
If you see the enthusiasm of the participants, I don't think anything has changed. still crowded. but if you look at the results, it seems that a lot has changed. bounty and airdrop, both do not make more money.