In the traceroute result, if you see a percentage of loss at any particular hop, it may happen that some ISPs are rate limiting the ICMP traffic that traceroute uses. This can give the illusion of packet loss when there is in fact no loss. To determine if the loss is real or due to rate limiting, you have to look at subsequent hops. If those hops show a loss of 0.0%, then you are likely seeing ICMP rate limiting and not actual loss. ICMP rate limiting is a common practice used to avoid overloading router CPU by ICMP requests. For your use case, we can see that at the last hop there is no packet loss.
It is worth mentioning that Google Groups is a place for non-technical how-to questions (where you're likely to find information like service status updates and release notes, and ranging from book recommendations to creative shortcuts) .
Therefore moving forward, I would recommend you to consider reaching out to Stack Exchange sites  (e.g. Server Fault  or Stack Overflow ) where Google also participates that can help you find answers and troubleshoot problems.
If you find any indication of a GCP specific issue, you may consider reporting  the issue with Issue Tracker with all the details  (omitting PII/sensitive information). You may also file a case with the GCP Support  and we will be more than happy to help.