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.
Change your DNS on your router to one you can block FB with. Free ones like Opendns or adguard should do the trick. For mobile it’s a bit more tricky since you can’t just change your mobile DNS without a VPN but you could get one for that too.
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.
You can change your DNS on iPhone at least. Settings > Wi-Fi > ℹ️ > Configure DNS > Manual
Add these servers: 94.140.14.14 94.140.15.15