Program that bypasses port sharing, but does not have to be installed on everyone (Minecraft Server, Hamachi Alternative)?

Since I can't release any ports (because of Vodafone Station), but I would like to host a Minecraft server myself, I now need some alternatives with which I can bypass the port release.

I generally have to release the ports so that other players can come to my server. I can't, however, and Hamachi was suggested as an alternative. However, all players would have to install Hamachi before they want to join the server and this is annoying in the long run and for some the whole thing does not work properly. So now my question: Is there a program that bypasses the port release, but does not have to be installed for everyone, but only for me?

You can rent a VM from, for example, Ionos.de (1 & 1), it costs 1 euro a month.

Then you install an OpenVPN server…

in your network you take a small Raspi and install OpenVPN on it, but the client…

you connect these two "computers" and your server can run over the IP that you get from Ionos… Over a VPN, so to speak…

this means that only Ionos can be attacked and you are completely safe in their network…

there's no other possibility, because your server runs on port (25565) and this port must be accessible, be it via a VPN or via the port from the router…

You can also configure the Vodafone station - you just have to know how to access the web interface…

p.s. You can also install the Virtual Box instead of the Raspis and create a Linux VM on it, which in turn contains the VPN client - so it only costs 1 Euro per month without fixed costs for the Raspi… - disadvantage, you can only connect if the VM is running and your computer must be running…

The device on which the Minecraft server is operated has to run anyway, and you could also use the OVPN client on it.

This is true…

What about Ngrok?

Haven't dealt with it yet…

Okay, but I think you have to give the new domain to your friends every time!

Hmm, very cumbersome this… Are you sure?

VPN is also cumbersome, that's clear to me, that's why I'm looking for a solution for me to have a fixed IPv4 …

I already have a fixed ipv6 but I can only use it to a limited extent…

Yeah, unfortunately I can't think of more.