A very good podcast that discuss in length about Chinese miners:
https://podcasts.apple.com/us/podcast/on-the-brink-with-castle-island/id1480586463
Some key takeaway
– Miners are not loyal to mining pools and move hashpower around
– Miners are directionally long BTC and are not incentivized to harm Bitcoin
– Hashpower is migrating towards USA
– Most BTC has been mined already
– US-based institutions have significant power