If you are a player who only cares about beating the main story (The Frieza, Cell, and Buu sagas + the main villain, Demigra), the v1.02 save is perfect. If you want to fight Jiren, you need a modern save.
Let’s face it: Xenoverse 2 is a massive game. While the grind is part of the fun for some, many players simply want to experiment with different builds, skills, and characters without investing 100+ hours. Dragon Ball Xenoverse 2 Version 1.02 Save Game BETTER
(If you want, I can: 1) produce a downloadable spec document for the proposed save container format; 2) draft the migration code for v1.02 -> new schema in C# or C++; or 3) produce an in-game UI mockup and localization strings. Which would you like?) If you are a player who only cares