Focaccia is just bread and oil. Pizza has mozzarella cheese and tomato sauce on it, definitely refrigerate. Some aged cheeses might be fine out of the fridge, but not fresh cheeses like mozzarella. I think that after baking (if you get it hot enough and the mozzarella is very crispy), pizza MIGHT be able to survive on the counter for a day or so. But I’d say it’s kinda risky, and your pizza gets stale! That’s not pleasant.
What are the bacon cheese rolls that you’re talking about? Sounds to me like something that should be refrigerated.
This might be fine. How does Woolies store them? Are they refrigerated there before you buy them? That’s an easy way to decide for most foods: if the grocery store refrigerates them, or if they say “refrigerate after opening” on the package, then you should refrigerate.
And many foods, even if you don’t HAVE to refrigerate them, will last longer in the fridge. I personally keep a loaf of sourdough in the fridge because it’s slower to mold.