Greetings Killkev95!
Thank you for reporting your situation regarding the launcher not starting the game properly.
In order to attempt to solve your issue, I suggest you take a look at our Common Technical Issues and solutions., which many solutions, including for your launcher issue.
Alternatively, you can also attempt to run the game directly from the conanexiles.exe, to see if it works.
Let us know if any of these solutions helped you Killkev95!