docs/config/lua/config/default_gui_startup_args.md
default_gui_startup_args = {"start"}{{since('20220101-133340-7edc5b5a')}}
When launching the GUI using either wezterm or wezterm-gui (with no
subcommand explicitly specified), wezterm will use the value of
default_gui_startup_args to pick a default mode for running the GUI.
The default for this config is {"start"} which makes wezterm with no
additional subcommand arguments equivalent to wezterm start.
If you know that you always want to use wezterm's ssh client to login to a particular host, then you might consider using this configuration:
config.default_gui_startup_args = { 'ssh', 'some-host' }
which will cause wezterm with no additional subcommand arguments to be
equivalent to running wezterm ssh some-host.
Specifying subcommand arguments on the command line is NOT additive with this config; the command line arguments always take precedence.
Depending on your desktop environment, you may find it simpler to use your operating system shortcut or alias function to set up a shortcut that runs the subcommand you desire.