How do I remove VPN from my iPhone 12?

How do I disable my VPN?

I am looking to connect to a VPN, this VPN has the ability to bypass firewalls if I am on port 80 and 443.

But since the VPN is on my external IP and I do not use port 80 or 443, how can I get around this? Do I install squid on my server, and put a proxy on my networked IP which points towards squid and then when I go to my proxy, it will point at the IP of the vpn server to make connections to it? Will this work? First of all you cannot make any connections to the firewall, if the firewall allows you only on the protocol that you have. (it means that it only allows to run http requests, no one can tell you that the firewall will allow you to write a word on your screen in plaintext mode. If the rule is only "allow http", it is impossible.)
So if you want to connect to port 80/443 you need to run service httpd -k shutdown. Then you open some ports on the host. The port should be forwarded from the NAT to the guest where you want to access the internet through the VPN tunnel.

On the host open a iptables rule: A INPUT -i eth0 -s 0/0 -j ACCEPT. A OUTPUT -o eth0 -s 0/0 -j ACCEPT. Then you can use iptables in nat mode to forward the traffic to the VPN server. Iptables -t nat -A POSTROUTING -s 10.1/32 ! -o eth0 -j MASQUERADE Now you have to specify the destination address in the natting rule. The above rule forwards all traffic to any IP address that matches 10. In case you dont want the host to be a gateway, that is to forward the packet to that specific ip, use -d 10.1/32 instead of -s 10. That will cause the guest to think that its packets are being sent to the VPN server.

Why can't I turn off VPN on iPhone?

The "VPN" icon that is displayed on my iPhone's icon bar appears as a symbol of some sort.

It's like the battery, or the mail icon, or I don't know what it could be. When I try to select it, it turns blue (or light gray), and when I try to click it (on touch screen or in normal conditions) nothing happens.

I already tried resetting and turning off/on network and wifi, rebooting, etc. I don't know if it has something to do with the app (and how to turn it off without uninstalling), or if it has something to do with my Apple ID, since I use different passwords on different apps, or if it has something to do with itunes/the App Store.

How can I turn this VPN off? (I already searched on Google, but all the results are for Windows or Mac, not for an iPhone). It's likely something with the iOS version of the app. The only method I found to disable it is to edit the info.plist file for the app. It's a hidden file located at ~/Library/Preferences/com.apple.AirDrop.