It's not worth it. Most airdrops are just a means of collecting your personal data and contact information to be sold for profit in email lists or similar. At most, you might gain a handful of cents or a buck or two. Bounty campaigns are hardly much better.
Sad but true. Back in early 2017 airdrops and bounties both were very lucrative. You could earn hundreds of dollars in eg. Twitter and Facebook campaigns per month. Nowadays, they are both not worth the effort anymore.
I took part in 3 signature campaigns in 2019. All of them were promising projects, one even had a working MVP. None of them was listed on an exchange, one project didnt even pay the tokens. So I had 3 month of effort without getting paid a single cent.