Install and about JFS on Linux:
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Install:
sudo apt install jfsutils


About:
JFS was created by IBM for AIX in 1990. Later updated for OS/2 and Linux as open source and 64bit in 1999. It supports journal.
All Linux (and OS/2) installs are JFS v2 only. Do not mix up with JFSv1 for old school version of AIX.

Sources:
https://wiki.archlinux.org/title/JFS
https://en.wikipedia.org/wiki/JFS_(file_system)

Date: Febuary 23rd 2023.