In the EU we can report this to: comp-market-information@ec.europa.eu
State that: Google is abusing its dominant position on the market for Android-app distribution by “denial of access to an essential facility”. Google is not complying with their "gatekeeper" DMA obligations (Article 5(4), Article 6(12), Article 11, Article 15)
Attach evidence.
Financial penalty is the only way to pressure this company to abide law.