It’s been on the up in recent years though as it appears to have won the format wars. Every vendor is rallying around it and there were new open source catalogues and support from AWS at the end of 2024.
yeah, I'll admit I was worried when Databricks acquired Tabular[0] that it would hurt Iceberg's momentum (e.g. databricks would push delta instead), but it seems the opposite has happened.
I was more worried—and continue to be so—that Databricks will bring the rat’s nest of complexity and pseudo-open source model that characterizes Delta to the future of Iceberg.
0 - https://www.definite.app/blog/databricks-tabular-acquisition