Will Systemd 245 Bring Major Changes to Linux's Home Directory Management? (techrepublic.com) 345
"Because the /home directory will no longer depend on the trifecta of systemd, /etc/passwd, and /etc/shadow, users and admins will then be able to easily migrate directories within /home," writes Jack Wallen at TechRepublic. "Imagine being able to move your /home/USER (where USER is your username) directory to a portable flash drive and use it on any system that works with systemd-homed. You could easily transport your /home/USER directory between home and work, or between systems within your company."
What is not clear is that for portability, systems would have to have identical user_id, group names, group_id, etc. And what mechanism is going to provide user authorization to login to a system?
"At the moment, systemd 245 is still in RC2 status," the article notes, adding "The good news, however, is that systemd 245 should be released sometime this year (2020).
"When that happens, prepare to change the way you manage users and their home directories."