As far as I know, that's only support for the container format. You can't actually decode HEIC without also installing libde265, which you are supposed to have a license for. I'm not even sure how you'd go about getting an individual license.
> You can't actually decode HEIC without also installing libde265, which you are supposed to have a license for. I'm not even sure how you'd go about getting an individual license.
Not wrong, but this is a different topic/objection than the GP's 'being locked into Apple's ecosystem'.
And as the Wikipedia article for HEIC shows, there's plenty of support for the format, even in open source OSes.
* https://en.wikipedia.org/wiki/High_Efficiency_Image_File_For...