[throawayonthe]

"Am I wrong to suspect that the Chinese government might be more likely ..." yes you are

the US is known to do dragnet surveillance; yes it's likely China might, but we don't know if it's valuable enough in this instance

anyway deepseek is open about using this data for training, therefore it is stored and could be searched if someone really wanted; so do the western providers (even when you opt out, at least on the non enterprise plans, most "store for up to thirty days for compliance or LE reasons" lol)