Google searches for how to cancel and delete Facebook, Instagram, and Threads accounts have seen explosive rises in the U.S. since Meta CEO Mark Zuckerberg announced that the company will end its third-party fact-checking system, loosen content moderation policies, and roll back previous limits to the amount of political content in user feeds.
You can with Android.
Settings > Connections > More Connection Settings > Private DNS > Private DNS Hostname.
You will need the hostname though instead of just the IP address.