Recently I update, in a spanish translation, to :
ERPNext: v13.0.0-beta.6 (version-13-beta)
Frappe Framework: v13.0.0-beta.7 (version-13-beta)
And I noticed that the button for “Save” (“Guardar” in spanish) changed for the german word “Speichern”. As we all know, the button for Save appear with the ALT keyboard option, that not recognizes the custom translation, I believe because the ALT keyboard option.
Perhaps, spanish users might need to make a special customization, or alter some code for this.