[2023] The EU4 launcher wouldn't launch the game

Yes, if you get some error when doing that we need to know what it is!

Otherwise :
DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/Europa Universalis IV/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/Europa Universalis IV/logs/ folder, attach here system.log , error.log .  

There's no mention of this game in that dxdiag, which means the game never even got started.

You seem to have pasted the contents of dxdiag.txt into the pdx_settings.txt file. Delete that file and try the game again, does it make a new one?

And, is there a "Documents/Paradox Interactive/Europa Universalis IV EGS/logs" folder? If so what is in it?


On an unrelated issue, your machine is badly configured:

Memory: 16384MB RAM
Available OS Memory: 14284MB RAM

2gb of your 16gb is wasted, probably the AMD Vega 8 video is set to use those memory addresses. There will probably be a bios/firmware setting to address that.