I added it to the common issues section as that section already shows two ways to silence type errors and the no_type_check is just a third. It makes sense to keep the ways to silence errors together. I'm not sure it makes sense as a standalone section in type_interence_and_notations.rst. I could create a new section altogether with all the different ways to silence the type errors?

Thanks for you contribution! I agree with Jukka that this shouldn't be in common_issues, I opened #12713 to move this to type_interence_and_notations.rst