Anything that you do in crypto without knowledge or understanding is likely gambling because if you are making guesses and going with your gut feelings while having no knowledge or understanding about what's happening. In general, spot trading is considered pretty safe, but as I said, it's only safe if you know about the market and what's happening in the market at the time when you make an entry, because if you don't, you will most likely make mistakes.
That being said, I would say that crypto options is something that can match the likes of gambling because it's a type of trading where you mostly predict the price action of an asset in the short run, and that isn't how trading generally works because in trading, you need to take at least some time for your prediction to work. Even in futures and margins trading, if you use low leverage, it can't be like gambling.