Greetings tmux developers and users,

When variables like global_environ, global_hooks, global_s_options, etc are used, are these meant to be server wide?

Global can feel ambiguous, even after reading this::

 When the server is started, tmux copies the environment into the global
 environment; in addition, each session has a session environment.

If in fact they are strictly server wide, why use global? As a user, I begin to question my own understanding how environment data persists: "Could global variables persist across multiple tmux servers through some other mean (saving it to a config file, or an ephemeral file in /tmp)", "Is global itself another concept outside of server/session/window/pane/client primitives I've grown familiar with?".

Before I get acclimated with the global_ prefix, is there any reason why server_ wasn't picked up? Isn't that more accurate?