Yes but does it mean the best in the world at a position? So only 11 players are world class?it just means to be recognised as one of the best in the world at what you do.
At least, it did before it got over analysed, like the term 'big club',
Or is it arguably could make a world XI? So maybe like top 25 player?
Or is it top 10 at a specific position? Which means top 100ish player in the world.
It’s different for everyone and doesn’t have an exact definition which is why every “is he world class or not” argument is pointless.