Where is here? You never said where you’re talking about.

Those repackages of libreoffice packages are actually official.

https://www.libreoffice.org/download/libreoffice-from-microsoft-and-mac-app-stores/

These versions are free software (as in open source) but there’s a small charge to cover the effort of putting software in the app stores, and to help develop the software (and build our communities).