QUOTE(Nikita78 @ Feb 4 2023, 00:19)

Is there any way to reset progress in Genshin Impact without creating a new account? It’s just that I haven’t logged into the game for a long time and wanted to replay everything from the beginning in order to refresh the plot lines in my memory. But I’m frankly too lazy to create a new account, and if I do create one, I will definitely fall into the grind hole.
Nope, the event in genshin also time limited, new accounts means you will lost most of time-limited event and stay on the original main story, i don't recommend you to reset account either. If you want to refresh plot lines on the main story, or Archon Quest, better you go to archive (on the menu > archive > story).
Some Quest is hella long like Aranara, Jeht's Quest, Sand Dunes, i not recommend you to reset, it not only grinding but very long journey