Django React Nginx serving admin static files

Your location /static is wrong. The alias directive substitutes parts of the URI when forming the pathname. The location parameter and the alias parameter should both end with a /, or neither end with a /:

location /static {
    alias /root/se/env/public/static;
}

or:

location /static/ {
    alias /root/se/env/public/static/;
}

In fact, because the alias parameter ends with the location parameter, you should not be using the alias directive at all. See the note at the end of the alias documentation.

location /static {
    root /root/se/env/public;
}