Corrupt settings or scripts in the AppData directory can trap the game in a launch-crash loop. Resetting this folder forces the game to generate fresh, working files. TOTAL WAR TROUBLESHOOTING - EPIC GAMES - SEGA Support
If you use mods, an update to the base game often breaks compatibility. Disable all mods total war three kingdoms crash after sega logo updated
While an official fix is yet to be announced, here are some potential solutions and workarounds: Corrupt settings or scripts in the AppData directory