is a Komplete 13 compatible with a 2024?
I'd say mainly no, assuming you mean a 2024 Mac. As a starting point, the version of Kontakt you get with K13 is 6, and the first version of Kontakt that's listed as compatible with Sequoia or Sonoma is 7 so most of the expansions/libraries won't be usable. You could upgrade Kontakt to K8 of course, then all the Kontakt stuff will work.
You can get full compatibility details here to check other products - https://support.native-instruments.com/hc/en-us/articles/360014900358-Compatibility-of-Native-Instruments-Products-on-macOS
