[Bug]: Jinja2 template using 'user' is not working

[Jonsonmon]

Description

I try to hide the tab if user is not me. And it does'nt working

hide: "{{ user != 'John' }}"

I understand that the command {{ user }} is not working properly...

I test it by

label: "{{ user }}"

And it show me the jinja as text instead of result...

Environment

- OS: [e.g. iOS, Linux]
- Browser: [e.g. chrome, safari]
- Home Assistant Version: [e.g. 2023.9.0]        
- Tabbed Card Version: [e.g. 0.3.4]

Reproducible configuration

*

Additional context

No response