Gambling yes, but so far the money laundering claim is baseless outside of hypothetical scenarios. The overwhelming majority of NFT sales are retail sales well below the $10k price point.

While I haven't seen any actual data, I suspect tax dodging is also a significant motivator in the NFT market (just like the market for physical art assets)

I think it might be for some people, sure, but usually the argument is that things like this are the main driver of NFT sales, which I think is way off the mark.

Which is exactly what you would do if you were money laundering because it keeps it below the bank reporting threshold.