I installed Brave earlier this week and that’s mostly true. There’s some built in stuff that will show by default, notably the toolbar buttons and the notification style alert on the new tab page for one of those things mentioned, but you can just close the notification and remove the toolbar buttons and you’re set.

That said, I think it’s still in the data monetization market like Alphabet with anonymized tokens, though I don’t remember the details.

systemctl restart artistd

Seems to still be called Vortex, it’s just a cross platform version.

I don’t think you even read the summary in the OP that describes exactly what this feature does. This is a feature for users for their owned devices. You can remotely install apps already. Now you can do the opposite.