WordPress revision disable

 Add the following code snippet in wp-config.php

define('AUTOSAVE_INTERVAL', 300); // seconds

define('WP_POST_REVISIONS', false);

Edit/add/append the following location block within the server block:

location / {
            try_files $uri $uri/ /index.php?$args; 
}

If your WordPress blog is in /faq/ sub-directory, try :

##
## note path to /faq/index.php 
##
location /faq/ {
            try_files $uri $uri/ /faq/index.php?$args; 
}

More examples

location /blog {

# First attempt to serve request as file, then

# as directory, then fall back to displaying a 404,

#try_files $uri $uri/ = 404;

try_files $uri $uri/ /blog/index.php?$args;

} 

location ~ \.php$ {

        include snippets/fastcgi-php.conf;

        fastcgi_pass unix:/run/php/php7.4-fpm.sock;

}

client_max_body_size 20M;

==================================================

and on /etc/php/7.4/fpm/php.ini

upload_max_filesize = 20M

post_max_size = 25M