Going by the specs you posted, I assume you are using Intel UHD graphics. I am using the original disc based version and don't know
if the current version Steam is using has been fixed to allow Integrated gpu's, but...
Fallout 3 will not run on integrated graphics without using the fix below.... I have tested this fix successfully with my Intel UHD 770 graphics.
https://www.nexusmods.com/fallout3/mods/17209
- Also get the Unofficial Patch from Nexus while you are there. This will help with other bugs that may or may have not been
fixed in the version being used by Steam.
btw - The game will run fine on Win11 without using Compatibility settings.
.