Apparently Apple can end-to-end encrypt your iCloud, but it’s opt in because they still want to profit off your data >_<
To enable this, go to Settings -> iCloud -> Advanced Data Protection
You need to have all the devices under your apple account to be fully updated, and you’ll need to remember a 28-key passphrase for recovery
I hate how big tech treats privacy as an afterthought. This should have been the default. But oh well. Spread the world people.
Switch from iCloud to Mega, that's how