Swiftkey isn’t a real option for me, it just sends my data to another one of the big 3 tech megacorporations.
What I’ve tried:
Degoogled my phone with UAD and used apps that can run in the background instead of relying on Google Play Services for push. But I kept missing important messages cause push didn’t work reliably. It lead to a wild goose chase of which system apps can be disabled and which permissions revoked without losing core functions, none of which is documented properly anywhere. Location only worked outside sometimes and took 3 minutes for a fix. And it still may not even do anything for privacy because the underlying system is made by Google and could just ignore all of my settings.
Installed LineageOS. This solved the problems above. But my banking app refused to even launch on it.
Gave up, again used a debloated Android but kept Google Play Services and its dependencies intact and just used no Google account or Google apps. Now banking works, push works, location works. But Google still has unlimited root access to my device, contacts, calls, SMS, location, so really what’s the point?