I dont use Mullvad VPN, only the browser. I do use NordVPN when I need to show as being in another country, but mostly to circumvent geolocation and keep some stuff from my ISP. I know commercial VPNs are just switching who sees your data, but I'm good having a company that's not my ISP and in my country looking at that. And yes, I distrust Google to no end. The same applies to Apple, Amazon, Microsoft, Samsung, etc. There are not many names out there I trust. At the end of the day, anything not under your control, you need to choose how much you trust it, if at all.