It can be an OK place to get a decent-ish steak served at an OK price, and onions are my favorite food so things like their Bloomin' Onion "appetizer" can be God-tier for me. Overall, I like Outback -- but only just barely. I give it 6/10, will probably return... eventually, some day, maybe; I can get a massive amount of onion served almost anywhere if I ask nicely.
But it doesn't seem very Australian to me, unless of course I'm approaching things as if I am living in a Crocodile Dundee film from several decades ago. (And these films are comedies, not documentaries!)
Foster's is worse. It's shit beer. As far as I know, it's always been shit beer. And there's definitely a place in the world for shit beers to exist, as long as they're cheap enough, but it's never met the snide, bold, and somewhat-reprehensible tagline of "Foster's. It's Australian for beer."
But Koala Kare? That name doesn't make me think of Australia at all. It makes me think of koala bears. And koala bears definitely seem to be cute and cuddly in photos...and their native environment is definitely highly regionalized. But they are also rapey animals that trend toward being full of chlamydia, and they feed their young with literal shit. (Straight up ass-to-mouth shit.)
And I've got a pretty positive image of every person from Australia whom I've ever interacted with, so I myself don't associate a product named after a dirty rapey diseased shit-eating bear with Australian nationality, culture, or provenance.
YMMV, of course. (And also: You're welcome!)