It's hard to know what's the right number to output here, but I am pretty sure tmux-mem is the one that's most off. If subtracting buffered files from used memory it seems to be 12GB, which seems reasonable. 48GB is just waaay off.
tmux-mem
$ tmux-mem
48.4gb / 64gb [▆] 76%
envinfo
$ npx envinfo --system
System:
OS: macOS 13.5
CPU: (12) arm64 Apple M2 Max
Memory: 15.13 GB / 64.00 GB
It's hard to know what's the right number to output here, but I am pretty sure tmux-mem is the one that's most off. If subtracting buffered files from used memory it seems to be 12GB, which seems reasonable. 48GB is just waaay off.
tmux-mem
envinfo
htop
Activity Monitor.app