Until you get a chance to leave behind Google’s Android operating system completely, here’s an article I saw with a few fairly simple things you can do that will reduce (although not eliminate) the ability of Google and others to scrape your data and monetize you.
I already do step 1 (Firefox etc). But looking at step 5, for example, my phone had all those ad options set to “on”.
But they lack sandboxing options which only exist with GrapheneOS. Sure, Calyx is usable but only with huge downsides when it comes to usability.