https://github.com/fn2006/PollyMC - Fork of prism launcher to allow offline play without an account.

You can try using an origin emulator to crack/bypass EA's launcher. Here is one on cs.rin.ru that you can use https://cs.rin.ru/forum/viewtopic.php?f=29&t=115335. It should work by replacing files from your game with ones from the emulator and filling out any required info in the config file if any. Hope it works for you and saves you from downloading a whole repack. Let me know if there are any issues and I can try to help if I can

You do not have to download a whole separate release like many people here are suggesting. You should be able to use an origin emulator to crack your own game files as is. Here is a link to one on cs.rin.ru that should work for you https://cs.rin.ru/forum/viewtopic.php?f=29&t=115335 sadly I don't have personal experience cracking origin/EA games but it should work by replacing the files in your game with the ones from the emulator and adding any required info to the emulator config file. You may also have to remove any embedded drm from the exe if the emulator alone does not work. You can use origin unwrapper for that https://cs.rin.ru/forum/viewtopic.php?p=2660134#p2660134. Hope this helps you get your game cracked.