That targets a different thing IMO. You can aim for privacy or you can aim for the thing being slow and irritating to use to disrupt the habit. If tech companies spend money to make their apps smooth to use, you can aim for the opposite and inject friction and reduce the amount of high you get from it and making it slower to reach so you can have a chance to take back the executive control over the task.

I get no high from my phone/apps since there are no ads and no perverse incentives. I'm not the product of the services I pay for.

I'm happy Fastmail (made by a small company) is much better and faster than Gmail (made by a advertising behemoth). Idem with GrapheneOS vs Pixel OS. The less friction, the shortest time spent using the phone, the most time to enjoy spending time outside and with friends.