> except McDonald to taste.
'[…] expect […]'
I'm Dutch and lived near the German border. The first time eating at a German McD's was about 25 years ago, and it was an experience. Because they changed the mayonnaise to German customs. In Germany, mayonnaise is sour, not sweet and the specific McD's version (which normally is yellow, and contains, I don't know, pickles?) was rather different.
As such, your 99,9% is overrated since there's even lots of local flavours and customs, but yes it is generally good enough, and if you consider intra culture, you're flat out right.