[m4rtink]

BTW, Fedora recently switched to zstd compression for its packages as well. For the same resons basically - much better overall de/compression speed while keeping the result mostly the same size.

Also one more benefit of zstd compression, that is not widely noted - a zstd file conpressed with multiple threads is binary the same as file compressed with single thread. So you can use multi threaded compression and you will end up with the same file cheksum, which is very important for package signing.

On the other hand xz, which has been used before, produces a binary different file if compressed by single or multiple threads. This basucally precludes multi threaded compression at package build time, as the compressed file checksums would not match if the package was rebuild with a different number of compression threads. (the unpacked payload will be always the same, but the compressed xz file will be binary different)