I was about to track a mail package due a company this based at the geographical part which I know as Holland ( Geography school class of 90s), and their website insists WE ARE Netherlands.
Dutch government started a REBRAND policy at about 2020, so to define that Netherlands
its the new Brand Name which
includes Holland and everything else within their own borderline.
They thought of that as a measure so to boost tourism alone.
Internet search might give you few more clues, but if you consider your self as newborn European, you better do some training for the correct spelling of the word
Netherlands
Note: Marketing experts, however, were not convinced that the rebranding was needed.