I’m facing WordPress Multisite redirection loop

My Nginx web server configuration:

    # Redirect all requests to betafox.net URLs to corresponding www.betafox.net URLs
    server {
        listen 80;
        listen 443 ssl http2;
        #listen 443 ssl on;
    
        ssl_certificate /etc/letsencrypt/live/betafox.net-0001/fullchain.pem; # managed by Certbot
        ssl_certificate_key /etc/letsencrypt/live/betafox.net-0001/privkey.pem; # managed by Certbot
    
        server_name betafox.net;
    
        return 301 https://www.betafox.net$request_uri;
    }
    
    # Redirect all other subdomain HTTP requests to HTTPS.
    server {
        listen 80;
        server_name *.betafox.net;
    
        #return 301 https://$http_host$request_uri;
        return 301 https://$host$request_uri;
    }
    
    # Removed the server block for port 80, it looked meaningless
    
    server {
        # Removed the default_server, default_server should not be the actual website
        listen 443 ssl;
        listen [::]:443 ssl;
    
        root /var/www/html;
        index index.php index.html index.htm;
    
        server_name betafox.net *.betafox.net;
    # Maximum file upload size is 4MB - change accordingly if needed
        client_max_body_size 512M;
        client_body_buffer_size 128k;
        include snippets/letsencrypt-nginx-certs.conf;
        include snippets/letsencrypt-nginx-route.conf;
    
        location / {
            try_files $uri $uri/ /index.php?q=$uri&$args;
        }
        error_page 404 /404.html;
    
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
            root /usr/share/nginx/html;
        }
    
        location ~ .php$ {
            include snippets/fastcgi-php.conf;
            fastcgi_pass unix:/etc/alternatives/php-fpm.sock;
        }
        ssl_certificate /etc/letsencrypt/live/betafox.net-0001/fullchain.pem; # managed by Certbot
        ssl_certificate_key /etc/letsencrypt/live/betafox.net-0001/privkey.pem; # managed by Certbot
    }

I don’t know why, but the site redirects too many times in www.betafox.net/wp-admin URL. This link describes a little more too about the issue. What could be behind this?