I’ve traveled a lot, and it’s pretty common to have to specify your place of residence on your entry card. i remember my guide book telling me to just pick some place you intend to stay from their accommodations section.

but I have never been asked to document my full stay as long as you can show an exit ticket within the allowed time frame.

once I went to Thailand, planned on traveling there and down to Singapore later - as the flight back from Singapore was later than my allowed time in Thailand I was forced to buy an early enough flight to Singapore on site. so yes, there are all kind of requirements in all kind of places - but they can be handled in much better ways than what this article is describing.