I found a temporary solution.

The problem lies within

webcache2

directory in the

~/.minecraft

The new launcher version probably corrupts some files in this folder and they prevent the launcher form starting normally. Deleting it allows the launcher to function properly, but since it creates this directory every time it launches, you’ll have to delete it before every launch.

If you’re starting Minecraft Launcher through .desktop file, using

bash -c "rm -r ~/.minecraft/webcache2; minecraft-launcher”

as your

Exec=

entry should help.

Reminder: DO NOT EVER RUN CODE YOU DO NOT UNDERSTAND!

I have the same issue on Ubuntu 24.04.2 LTS, Linux 6.11.0-28-generic.

Running from CLI returns this over and over with fail counter increasing each time:

[348806:348806:0707/171637.185461:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 1 times!

Running with root privileges first updated the launcher, then prompted to create a keyring and after that threw a bunch of errors.

Reinstalling doesn’t help. The launcher freezes on the login screen after logging in.