SD cards are far from obsolete. Other cards are only preferred for hi-end video and top of the line sports cameras, and even these often contain SD as well. Unless higher speeds are absolutely needed, SD cards are a smaller more economical choice. SD is the USB of removable storage. There are usually faster standards, but SD continues to be the most common while other standards die and are replaced.
My only complaint would be that it is a UHS-II slot instead of a UHS-III one. UHS-III adoption has hardly begun, but it’d be nice for future-proofing.