These stories provide some background of Krypton. I can’t say that they cover anything particularly intriguing except for when those events relate to Kal-El, and most of that is already well known or covered in his origin stories.
Even so, readers may pick up tidbits here and there. For example, I didn’t know that Jor-El was involved in the Phantom Zone project, or that Lara was an astronaut before she gave that up for child rearing, apparently. That’s one version, anyway.
There’s a strange series from the 1980s that gets into cloning as a source for strife on Krypton. Three of the issues show us that history, and then it gets repeated in a very talky and boring fourth issue as Superman relates all of those events to Lois on a date.
In this version, Jor-El is more of a history buff who watches videos of Lara working as the Kryptonian head archivist. Kal is conceived in a test tube, basically, and Kal and Lara never meet until their end.
John Byrne, who wrote this version, does this to set up Earth as the world where Clark gains feelings and humanity. However, in making Krypton so cold and sterile, Byrne also ironically makes Keypton less conducive to human interest, drama, and thus any good storytelling at all.
One downside of a collection like this is that certain details may get retconned, making those details only irrelevant to a different comic age’s Krypton. Still, the collection offers some decent stories, though none are very exciting or memorable.
What these stories may show most of all is that Krypton is only interesting as a setting because it blew up. Krypton may have given Superman the substance of life, but it is Earth that gave him a life of substance.