Isn't Apple one of these companies that actually does not sell user's data?

The data is unavailable to Apple.

https://security.apple.com/blog/private-cloud-compute/

It wasn’t a software issue, but a human issue. People got scammed and gave their logins away.

This system is built so that nobody can access it and they’ve went to extreme lengths to make it so. It’s also available for auditing, it hardware and software.

“It’s a very thoughtful design. Indeed, if you gave an excellent team a huge pile of money and told them to build the best “private” cloud in the world, it would probably look like this.”

• Matthew D Green, cryptography teacher at Josh Hopkins

You can go argue with him if you disagree.