the maintainer is currently Ubuntu, but they stuck at version 5.2.1, which was released in Jan 2021. would Pop! compile a more updated version (say 5.3.1)?

zstd formated Kernel has conflicts with the 5.2.1, causing issues with libguestfs, but it’s fixed upstream on 5.3.1+.

This is related to: https://lemm.ee/post/11764643