I think, you need to ask cloud support for this information, they should be able to help.
Every environment is different and obviously I'm not privvy to the details of yours, but generally speaking, there might be situations where network addresses might differ when accessing systems from different locations. Also, because many Onestream systems are composed of different servers, depending on where that code is actually running (extender vs custom calc etc) might potentially also give you different results.
Last but not least, and not necessarily linked to the original problem but in general terms, "for google" - it's a remote http call, which is relatively slow and expensive. For something executed repeatedly, it might make sense to have something that avoids making that call - it would probably make the solution slightly less dynamic but faster and less risky (what if Ipify.org goes down?).
I get what you're saying but we're talking about cloud environments so they should be the same and it's just a one off if it's a static IP so I think it's a perfectly acceptable solution in this case.
Have definitely faced trouble connecting to environments with funky routing though. E.g. Azure to Azure.
