I know I'm 1 year late, but there probably still are some people who are having this issue with the x64 version, so I'll say what fixed mine. The SDL2.dll appears to be either outdated or misused, so to fix the current version:
1. Download the latest x 64 SDL2 version from https://github.com/libsdl-org/SDL/releases. Be sure to download the SDL2 version and not the SDL3 version, release name should be something like SDL2-2.x.x-win32-x64.(DO NOT GET A SDL2.dll FILE FROM ANY OTHER WEBSITE UNLESS IT'S FROM ANOTHER GAME)
2. Extract the .zip file and replace the SDL2.dll file from the x64 version of the game with the SDL2.dll file from the .zip file.
Also, the x86 version crashing is definitely a Windows 11 problem because I had the exact issue on my Windows 11 pc, but the x86 version runs just fine on my Windows 10 pc.