Mullvad vs my ISP.

One at least has open source software clients, and publishes audits from other 3rd-party audit organizations.

The other open source... nothing. Their client apps have dozens of trackers inside. And it's a dream to see any of the ISPs in my county publish any 3rd-party audits. Their other products (going with the service) have trackers and personalized targeting ads inside.

Yeah, in my 1 million alternate universes should I trust my ISP more.