@Rishio , haha you where to fast, I edited my post and corrected me, it’s as you say, I use pixelmator photo with my iPhone.
So I guess its the pixelmator that delets exif-data. One comment on a forum said that the file loses exif if you choose “export for web” on the pro version, but not if you just choose “export”. Haven’t tried the pixelmator myself, but if there is a choice like that, try it if you want.
(I like images without boarders anyway, except if it’s a printed photo in a frame 😁)