Cook the bacon in a large skillet over medium-high heat until crispy, about 8-10 minutes, stirring occasionally. Transfer to a paper towel-lined plate to cool, then crumble into small bite-sized pieces. While the bacon cooks, peel and slice the carrots into ¼-inch rounds and dice the celery into small, uniform pieces.

In a large pot, combine the chicken stock, condensed chicken soup, milk, and softened cream cheese. Whisk over medium heat for 3-4 minutes until the cream cheese is fully incorporated and the mixture is smooth and well-blended. Add the diced celery, sliced carrots, shredded chicken, crumbled bacon from Step 1, ranch seasoning, and garlic powder. Bring the mixture to a boil, then reduce heat to medium-low.

Maintain a gentle simmer on medium-low heat for 20-25 minutes, stirring occasionally. This simmering time allows the chicken to fully cook if using raw pieces, the vegetables to soften, and the flavors to meld together beautifully.

Break the angel hair pasta into 2-inch pieces directly into the simmering soup. Stir well to prevent clumping and cook for 4-5 minutes, then add the shredded cheddar cheese in handfuls, stirring constantly until fully melted and incorporated. Continue simmering until the noodles reach your desired tenderness, about 2-3 additional minutes.

Remove from heat and taste the soup. Adjust seasonings with additional salt, pepper, or ranch seasoning if needed. Ladle into bowls and serve immediately while hot and creamy.