Hello,
Google doesn't share the results of Vulnerability Assessment and Penetration Test with customers. Details on our Penetration Testing and Vulnerability Reward Program can be found at this link and [1] and additional information on this support page [2].
Regarding network vulnerabilities scan, I would like to introduce Cloud Security Command Center (Cloud SCC) [3], Cloud SCC enables you to filter and view vulnerability and threat findings in many different ways, like filtering on a specific finding type, resource type, or for a specific asset. Also please refer to the following link [4] which you can find google security overview.
Thank you,