Concepts vary depending on the nature of people, so answers will vary depending on this.
In my personal opinion, cryptocurrency trading and cryptocurrency airdrops (P2E or tap-to-tap) are not gambling because trading relies on experience, knowledge, and technical analysis. Airdrops, on the other hand, are free, so they cannot be described as gambling.
While presales, initial coin offerings, investing in meme coins, pump-and-dump schemes, and the like can be described as gambling because they rely primarily on luck.