2020 edition, Catalina 10.15.7 on MacBook Pro.
I've looked at /var/vm (not touching anything in there per advice).
It used to fill up with 1GB files and they'd be deleted upon reboot, but now it's just sleepimage as the only file in there; is this usual, even when doing web browsing or using Pages etc.?
Also, why does it have the option to eject it when it never used to?
I'm slightly confused by this, having used Mac desktops since 2011.
Best Answer
All is well - the system is managing this space better and better over time. As the system gets sliced into a user space overlay and a sealed and signed system overlay, it’s natural to have transient files like caches in a third filesystem.
All this is unlocked and enabled by APFS containers.