Launcher crash before company logo

Without sharing the error log there's no way to determine what the issue is. However it it unlikely that it is an issue on Mojang's end. 

Ensure you have the latest version of Java on your system (JRE 16) and that your OpenGL driver's support OpenGL 3.2. Granted those are only guesses for solutions to your problem without the logs.

Regardless this isn't an issue for Mojang.

Please attach a crash report. If not available, the launcher log.

https://minecrafthopper.net/help/guides/getting-minecraft-jvm-crash-report/

What version of Java do you use? Do the instructions from MC-225505 solve the issue?

17:54:47.778 launcher main Downloads successful
17:54:47.779 launcher main TIMER: Downloads took 207 seconds.
17:54:47.779 launcher main Downloading Java Runtime java-runtime-alpha:16.0.1.9.1
17:54:47.944 launcher main Extracting 8 files!
17:54:48.774 launcher main Using default game log configuration client-1.12.xml (outputs XML)
17:54:48.774 launcher main Installing versions!
18:03:27.337 launcher main Unrecognized VM option 'UseConcMarkSweepGC'
18:03:27.337 monitor Process Monitor Process crashed with exit code 1

Thank you for your report!
However, this issue is Invalid.

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Please contact Community Support for assistance and refer to this ticket (e.g. "I have reported this issue on Mojira as MC-XYZ.").

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