I mean major Google APIs / SDKs do... And not just in edge cases. Not at all uncommon for a vendor to decide a service is unprofitable and kill it, or to decide to launch a new better version and deprecate the old one / demise in a couple of years. That isn't fun when you heavily depend on it.

When you look at the sheer number of services AWS offer, it feels its only a bad year or a major competitor gaining an advantage and undercutting them on price before there is a risk they consider trimming to a smaller core set of services. I'd bet the VPS offerings aren't what goes...

Or a standard comes out, they adopt that and deprecate the existing offering giving you 2 years to migrate. Having to re-work everything is a major cost to large firms and can kill a startup.

I think there is a difference here between the core behaviour and the edge case behaviour. I guess I would trust that in the core behaviour they do not change on a day-to-day basis but the question is how do they behave when you are pushing the tools outside the intended core use cases. Can you then really trust services that change their core implementation constantly will work for your workflow?

TBH i would probably trust a CDN because I have a fairly simple use for such a service. If I were really pushing these tools, like running a video broadcast service or whatever, I would be much more worried.