[2023] Crash around mid game happens all the time no mods

DininGaming said: Win7-8 comp mode + administration run.

That will cause problems all of its own, and is not necessary.

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.

Then start a new test galaxy - any better?  

The game is still set to 144hz refresh rate there. Please set it to 60, I'm pretty sure that will help you.