Hello,
did you come across a similiar issue? I am playing on Legion Go.
Thanks for any tips!

Same, I have legion go running AMD graphics and as soon as I try to start a new game, the intro video plays for a second and then locks up. I have to control/alt/delete to shutdown the executable or reboot to get my system back. So needless to say I can't start a game of Fallout London. Fallout 4 GOTY runs fine without London installed. I tried reinstalling multiple times thinking my files were bad but no luck.

O.K. you have to spam the equivalent of the "Y" button on your controller when the video starts up so you skip past it. I saw the solution here somewhere about spamming the "T" key on the keyboard (so I dont want to take credit) but that didn't seem to work for me since I think my install of Fallout London wanted me to use the "Y" button to skip video...maybe cause im using ds4 windows so i can use my ps5 controller...anyhow trying spamming your "Y" button on your controller or the "T" key on your keyboard.