Maybe this will help.
https://minisplitratings.com/complete-list-mini-split-manufacturers/#fujitsu
It seems pretty all-inclusive.
I was researching about a month ago and many, many of the pro’s swear by Fujitsu, but on the link above, it says they are manufactured in China and Thailand.
The quality of the units might not depend as much on whare they are manufactured, but to what high standards they are manufactured. Japanese manufacturing practices are probably the most stringent in the world. Germany might be the only one to consistnly meet the same standards.
Think of the Honda plants in Ohio, or Toronto, or in Alabama. Your still getting a high quality build, not because it was made in Japan, but because Japanese companies tend to have very stringent manufacturing requirements.
I’m not an expert, though. I’m just thinking out loud.
Gets real complicated though - where are the parts that are assembled into a car in Ohio made? Are they shipping circuit boards and fuel injectors and tires to Ohio from Japan? China? Germany?