If this method doesn't work for you, try this alternative method that I used back then:
1. Around the 1:55 mark, the launcher is attempting redownload the game again.
2. Stop the download and close the launcher.
3. Go to the new location where your Genshin Impact game is supposed to be located.
4. The new game folder made by the launcher should have some ZIP_TMP files (.zip_tmp).
5. These are the game's compressed download files. Delete these files.
6. Move your current Genshin Impact game folder you have (the full game files / 30GB+) to the new location where the new folder is located.
7. Open your launcher again. It should show the "Launch" option instead of "Get Game".
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