Internationally BP pretty much sits on their own league so no Kpop gg have ever gotten close to what BP have achieved
Korea wise SNSD was still refered to as 'Kpop representative gg' on a show a month ago, still etched as a top gg 13 years after debut and 3 years after their hiatus. They were put on a tourism promo ad for Korea and was mentioned alongside kimchi, Dae Jang Geum and Park Ji Sung, which is pretty telling how high they were regarded. They were plastered on an ad for Korea during the Olympic promotions.
I haven't seen BP achieved that same recognition in Korea. But to be fair no gen 3 gg have achieved that SNSD level of recognition. Will they achieve that someday? Maybe, Blackpink still has room to grow.