Yep - I think it's mostly people who go by word of mouth and don't know about the leading free-without-cracks alternative, but RAR does still have some genuine merits like [native] optional redundancy!

Yes, I mean compression.

From the home page (https://www.keka.io/en/):

    Keka can create files in these formats:
    7Z ZIP TAR GZIP BZIP2 XZ LZIP DMG ISO BROTLI ZSTD LRZIP AAR WIM 
    
    And extract all of these formats:
    7Z ZIP ZIPX RAR TAR GZIP BZIP2 XZ LZIP DMG ISO BROTLI ZSTD LRZIP LZMA EXE CAB WIM MSI PAX JAR WAR IPA XIP APK APPX XPI WPRESS IS3 CPGZ CPIO CPT SPK