No, not at all. People routinely develop on OS X and deploy on Linux without issue.

Here, though, i just meant that i can develop on Ubuntu 18.04, build on CentOS 6, and deploy on RHEL 7 without issue.

I mean, they dropped the slogan. The idea still held up, and in a lot of ways, still does, though the jungle of different versions and Maven version hell makes it less universal than the initial hope.