Foldables thus far have been a very niche market
Old data from a Reuters article last year:
"But high prices and a lack of use cases mean foldable phones are likely to remain a niche segment, the analysts said, with data from research firm IDC showing they account for just 1.5% of the total smartphone market."
"Samsung's foldable smartphones account for 4% of its total phone sales but 16% of those priced over $800, Canalys said."