I would go even further and suggest that "fact/opinion" is just a framing that falls apart under scrutiny.

My framework is more or less that anything we might call a fact or an opinion is a statement, statements have varying degrees of veracity/falsifiability, and statements are essentially meaningless until they're processed through the lens of underlying beliefs/values/frameworks.

"The sky is blue" - What is the sky? What is blue? Who is viewing the sky, (someone who has sight, and isn't colorblind perhaps)? Isn't it sometimes gray? And so on.