Across the world, the biggest smartphone manufacturers are Apple (28%), Samsung (24%), Xiaomi (12%), Oppo (6%) and Vivo (5%). However, there are geographic patterns in popularity, with Apple dominating North America and East Asia, while Samsung leads in South America, Europe, Africa and West Asia in addition to its home turf of South Korea. Xiaomi is the most popular phone brand across South Asia, Spain, Venezuela, Ukraine, Madagascar, Kyrgyzstan and Palestine, while Tecno is popular in West and Central Africa. Oppo, Vivo and Huawei lead in Indonesia, Bhutan and Togo respectively.
Apple is leading in a lot of countries despite Android being the dominant OS, because the Android userbase is divided among different manufacturers. See China, for example.
But here is the thing the only phones people buy in eastern Europe is xiaomi and Samsung and pretty much the only ones with Iphones don’t even live in eastern europe
It could be a different stratum of society. Maybe like politicians and businessmen. They say ~5% of Indians have iPhones, but I only know two people with iPhones (and one was second-hand).