Chinese A-shares and U.S. stocks are completely different games.

I feel that A-shares are more like on-chain memes, with no short-selling mechanism; the main players only have one way to survive: find themes, boost expectations, drive up prices, and then distribute; and it's still a meme with daily limit-ups, where information digestion can only be relay-based, not continuous pricing.
U.S. stocks have complete counterparties, with long and short battles, and are "positive-sum games" with contracts that involve earnings and dividends over the long term, creating value just by holding.
Choose your own battlefield.