Video projects you create in Ads Creative Studio can be exported to a Google Ads advertiser. In the future, you'll also be able to export them to Display & Video 360 and Campaign Manager 360.
YouTube video ad guidelines
To make sure your projects are eligible to serve in Google Ads, make sure all creative assets and landing pages meet Google Ads' video ad requirements.
You can also review specifications for each video ad format in the Google Ads Help Center.