I reckon "comfortably" means at the end of the week there is "some left over".
I think apart from an unencumbered house, its good to start retirement with a house that is new or in good repair so it will at least last till life expectancy.
Interestingly after age 85 the prediction by the same mob is the financial requirements will be less:
View attachment 111586
The budget arriving at the above figures are here.
Only $2832 pa allocated to overseas vacation for a "comfortable" couple :
I cant possibly be comfortable in Y