Almost all Asian CEX ran fractional reserves on Monero. This includes Binance, OKX, Poloniex, HTX, KuCoin, MEXC, Gate, and other no name CEX. Only Kraken and Bitfinex are believed to be backed CEX. Which means if you go to 10% reserves you can sell plenty of coins without having a positive effect on price. That's why ironically Monero community started to cheer the delistings of CEX. There are still some culprits trying to actively suppress prices. But since Binance and OKX delisted and pulled 90% of Monero liquidity prices x3 (which shouldn't really be the case if CEX operated fully backed).