You can't fix a lack of trust like you have in Android with technical solutions. The flaw in Android is fundamentally a social problem.
If you want something backed by objective data, my phone has an advertising ID built in the OS and my laptop doesn't. My phone had 100s of privacy scandals and my laptop doesn't have one.
I do applaud GrapheneOS don't get me wrong but I have a feeling that they are fighting a losing battle.
GrapheneOS provides far better privacy and security than a desktop OS. There's no such thing as an advertising ID built into GrapheneOS so it's a strange thing to bring up. There are plenty of privacy invasive things built into desktop operating systems and applications, including open source ones. They nearly entirely lack the ability to protect against apps and services being privacy invasive in the first place. They also have far weaker protection against exploitation.