Google bans Huawei. What should I do with google dependencies?

I have a few apps on Play Market and I'd like to publish them on Huawei AppGallery. I care about next dependencies:

• com.github.GoogleChrome.custom-tabs-client:customtabs
• play-services-ads
• firebase-core

Am I right that no one from this list will work? I mean on devices in ban list. If yes what are workarounds for that dependencies? Or any other/additional restrictions?

For google releated dependencies you have to use huawei provided services or third party SDK. It's not so much hard to convert them. You can use HMS Core Toolkit, it help you to quickly migrate the app to the HMS to release it in the HUAWEI AppGallery.

1. Firebase Authentication: Integrate HMS Account Kit, Integrate AGC Auth Service
2. Fire Base: HMS Push kit.
3. Firebase Crashlytics: AGC Crash Service.
4. Firebase A/B Testing: Huawei A/B Testing
5. play-services-ads: Huawe ADS kit.