For me, this happened in 26.52, I click Play from the launcher, or click the Minecraft.Windows.exe directly, it gets to the loading screen, loads to 51%(every time) and then crashes silently, no error code or anything. I’ve tried uninstalling the game and reinstalling multiple times in different ways; from the Microsoft Store, from the Minecraft Launcher, manually deleting the files from the “%appdata%\Packages\Microsoft.Minecraft…” folder, as well as the one in the Program Files directory, and then reinstalling it, I’ve tried uninstalling from Windows Add or Remove Programs and then reinstalling, I’ve updated my graphics driver, I’ve run sfc /scannow and DISM commands and then restarted my PC multiple times…I’m at a loss man, I was literally just playing the game yesterday without issues. It seems like it happened after the following(This was the last action I was able to do which was earlier today, and I had no big changes to my PC before doing this, the graphics driver update came after this happened because I was trying to fix this):

I clicked the wrong realm(joined my own realm server instead of my friend’s like I was intending to), my realm has mods on it so it loaded to the point where it asks if I’d like to “Download everything and Join” or just “Join” and then I clicked the download everything option, but then I was like, “I’ll just restart the game” so I closed it in the middle of that, and now haven’t been able to start it back up since then. Always loads to 51% before the main menu and then closes silently.

Attached is a video showing the process where it loads to 51% and then crashes back to the desktop.