Nope. We had been testing in our development and staging environments for months. We were deploying to production the exact same stack and we got our quota revoked within about an hour. We must have tripped some random thing. We have absolutely no idea what I could have been though.
The quota we needed increased far beyond the usual was the YouTube API. The startup was a media editing and publishing tool, with a feature to upload videos to YouTube on your behalf. Uploading a video requires a ton of quota, which they gave us.
Regardless, dropping all quotas to 0 effectively killed our GCP account.
I had my GCP quota algorithmically set to 0 after spending 6 months working with them to launch a startup.
I went through a ton of hoops to get approval for our quota. We sent them system diagrams, code samples, financial reports, growth predictions, etc. It was months of back and forth. I'll also add that it was very annoying because they auto-reject your quota request if you don't respond to their emails within 48 hours but their responses take 1-3 weeks. In any case, after 6 months, they eventually approved us for our quota, we launched, and they shut us down to 0 quota across all services the instant our production app got traffic.
We contacted them again asking for help. We never got any human response. We got a boiler plate template a few times, but that was it.
I will never ever ever again use a cloud service where I can't guarantee that I can get good customer service. Unfortunately for a small business that means no big clouds like AWS, GCP, etc.