That is not true
For example see
For example see
You can try to guess the location of edges to enhance them after upscaling, but it's guessing, and when the source has the detail level of a 170x170 moon photo a big proportion of the guessing will inevitably be wrong.
And in this case it would take a pretty amazing unblur to even get to the point it can start looking for those edges.
You did not link an example of upscaling, the before and after are the same size.
Unsharp filters enhance false edges on almost all images.
If you claim either one of those are wrong, you're being ridiculous.
And to be clear, everyone including Apple has been doing this since at least 2017
The problem with what Samsung was doing is that it was moon-specific detection and replacement