That error .log looks like there were still mods in use! Are you sure there were no files or folders left under either the Steam Stellaris or Documents Stellaris locations, before installing again?
And you disabled ALL Mods in the launcher before starting this galaxy?
Your Intel(R) Iris(R) Xe Graphics is above the minimum requirement, but below the recommended ones, as it has almost no VRam of its own (it borrows it from the system memory).
Display Memory: 4045 MB
Dedicated Memory: 128 MB
Shared Memory: 3917 MB
Memory: 8192MB RAM
Available OS Memory: 7834MB RAM
Page File: 13216MB used, 2723MB available
Something is using a LOT of your memory and paging file! Try unloading every other app you can before starting this game.
And finally, Right click on stellaris.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.
Then in the launcher Game Settings menu, select fullScreen display mode, Vsync off, cap refresh rate to refresh rate 60.
Does any of that help?