I've tried the native tab support several times, and my impression is that it's good for very little.
It may be OK for certain types of document-oriented apps, but there's a reason most apps (Chrome, iTerm, even Safari uses its own native tabs, I believe) don't use it. It's underbaked and awkward to fit into a model where your "tab data model" doesn't neatly fit the document data model that the framework wants.
I recently made an app where I wanted tabs, and I just ended up abandoning tab support for this reason, and adding a todo item to use an off-the-shelf tab UI library in the future.
It may be OK for certain types of document-oriented apps, but there's a reason most apps (Chrome, iTerm, even Safari uses its own native tabs, I believe) don't use it. It's underbaked and awkward to fit into a model where your "tab data model" doesn't neatly fit the document data model that the framework wants.
I recently made an app where I wanted tabs, and I just ended up abandoning tab support for this reason, and adding a todo item to use an off-the-shelf tab UI library in the future.