I’d like to believe today’s technically savvy kids know bad CGI when they see it.
Though I’ve literally heard teenagers complain about the CGI in 2008’s Iron Man the same way some people complain about films that are genuinely old. I think sometimes people just complain because they know a film is old (or at least old by their standards). I’ve even seen YT comment where someone complained about bad miniature effects when the scene in question actually contained a real location.
I’ve always been kind of confused about how many people react to CGI. I feel like a lot of kids these days are so used to Hollywood being able to do pretty much anything that they just assume everything is fake. Its almost like they don’t know how to respond to something “real”. They’ve always had CG so in a sense that fake digital look is just what unreal things (like aliens or spaceships) are supposed to look like in their minds.