It would probably help to read more than the title. The line right below the title says:

> With the latest Android 16 beta, you can now allocate as much storage as you want to the Linux Terminal

You can now allocate as much storage as you want to the "Linux Terminal" app that runs in a VM. Nothing to do with letting Linux terminal commands access all your data.

And if you are curious enough to read more than the first sentence, but don't have more than 25s of attention span, you can read the next paragraph which is literally called "TL;DR".