Use mullvad-vpn, not going to create an alias for mullvad-gui after all.

files/settings/i3.config

@@ -324,7 +324,7 @@ bar {
 
 ## Startup Applications ##
 
-exec mullvad-gui
+exec mullvad-vpn
 exec i3-sensible-terminal
 #exec firefox-flatpak
 exec transmission

tasks/workstation/linux/software/vpn.yml

@@ -25,9 +25,6 @@
 - name: Workstation | Software | VPN | Mullvad | Symlink GUI
   ansible.builtin.file:
     src: "/opt/Mullvad VPN/mullvad-vpn"
-    dest: "{{ item }}"
+    dest: "{{ global_bin }}/mullvad-vpn"
     state: link
     force: true
-  loop:
-    - "{{ global_bin }}/mullvad-vpn"
-    - "{{ global_bin }}/mullvad-gui"