Hi,
I think the reason your site can’t be opened is because your port 443 is not open or being filtered by a firewall.
First, check your GCP’s platform firewall: https://docs.bitnami.com/google/faq/administration/use-firewall/
Then, check your compute instance firewall (check iptables, firewalld or ufw)
P.S. I merged your configuration into one virtual host file: https://pastebin.com/5LVMg09i.
You might also have a duplicate virtual host configuration for your HTTP virtual host, you can run sudo nginx -T for a complete list of virtual host files currently in use and remove the duplicate for both hostnames.
Thank you