sudo grep -ri 'TLSv1.2' /etc/nginx/ shows the following result

/etc/nginx/nginx.conf:  ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE

Here is the contents of /etc/nginx/sites-enabled/themusicvault.co.uk

server {
    server_name themusicvault.co.uk www.themusicvault.co.uk;
    root /var/www/html;

    if ($scheme = http) {
               return 301 https://www.themusicvault.co.uk$request_uri;
        }

    index index.php  index.html index.htm;

    location / {
       # try_files $uri $uri/ =404;
        try_files $uri $uri/ /index.php$is_args$args;
    }

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
    }

    location ~ /\.ht {
        deny all;
    }

    location = /favicon.ico { log_not_found off; access_log off; }
    location = /robots.txt { log_not_found off; access_log off; allow all; }
    location ~* \.(css|gif|ico|jpeg|jpg|js|png)$ {
        expires max;
        log_not_found off;
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/themusicvault.co.uk/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/themusicvault.co.uk/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot


}
server {
    if ($host = www.themusicvault.co.uk) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = themusicvault.co.uk) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    listen 80;
    server_name themusicvault.co.uk www.themusicvault.co.uk;
    return 404; # managed by Certbot




}