I guess it depends on what the team's priorities are. As far as a truly fair airdrop goes:

• min 10% for airdrop for healthy mcap/fdv ratio
• no locked token airdrop (lol)
• cap the max amount per sybil identity (Arbitrum)
• time-weighted allocation rather than tx frequency or wash trade volume (active days/weeks/months vs tx count)
• multiple seasons of airdrops to sustain interest as product develops (Optimism)
• factor in wallet age, lifetime tx freq & vol to weed out farming
• factor in multichain activity levels
• social & community activity (if possible to weed out bots & spam)

Just some ideas to ensure you're actually decentralizing rather than putting on a facade over predatory tokenomics.