I've been using X30 Pro (stock ROM) for a month.
- Play Store (build-in) - it can't update itself, but can be updated from moto App Center
- Contact (need to install Google Contact Sync from moto App Center or from other apk source, otherwise account sync will not work)
- Google One, Gmail, Keep, Docs etc
- Google Pay - no issue with adding credit cards, and NFC payment
- Google Assistant - voice matching option greyed out, so hey google does not work. Voice input works however.
- Android Auto - not working