There is some fantastic coffee in the UK (personally I know of good places in Leeds, Huddersfield, Manchester, Brighton, London). I think you need to know locals to help you find the good places, as they're usually a bit out of the way.

I drank a lot of coffee in Oz though. I loved how easy it is to get a good coffee. It seemed more accessible and standards higher across the board.

I travelled through Europe 2018, mainly spent my time in Italy, Greece and Malta. Also spent some time in Prague and Budapest.

I personally really enjoyed Greek style Coffee but I guess not for everybody. I'm hardly what you would call a coffee snob here in Australia though.

And never a flat white to be found. Sydney, Melbourne - great coffee culture when we lived there in ‘08, better than EU.

Australian coffee culture is genuinely amongst the best in the world. Traveling elsewhere is always involves the bittersweet sacrifice of good quality coffee for several weeks, with the rare exceptions that punctuate that time savoured very much indeed. I'm sure I'm biased, but there's a hell of a lot of good supporting anecdata backing it up.