It’s happening a lot in alternative OS for Android. Promising distribution’s such as CalyxOS and GrapheneOS offers very interesting features with big focus on privacy and security. We also have PureOS a pure linux distro that’s not based on AOSP but tries to use desktop linux apps on the phone. For me it still not viable way as a daily driver. The major drawback is that even that they are interesting they are only supported for Pixel phones (or specific phones like Librem for PureOS).