does that apply to a non british child? because the child isnt mine its from her ex partner thats why i asked also i wasnt sure if its the same

i have a spouse from the phillipines we intend to apply for a visa for her to come here to wales UK i assumed it would be spouse visa but as she has 1 child i am not sure if this is now correct. im currently in reciept of PIP and ESA benefits and i have some small income from part time work. i under...