Debian 12 openvpn

[k829king]

So is this openvpn the same as openvpn package in Debian repos?
Is there a known working tutorial for installation and configuration on Debian 12?
I have found and tried a number of links

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https://wiki.debian.org/OpenVPN
https://www.howtoforge.com/how-to-install-and-configure-openvpn-server-on-debian-12/
https://www.server-world.info/en/note?os=Debian_12&p=openvpn&f=1

But they all seem to have slight variations, and so far none of them seem to completely work, (for me).
I have posted a similar message message on debian forums with little traction so far.
The seemingly best option I found, the last one, still failed right at the end with

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Sep 03 13:13:55 VPNSERVER openvpn[1429513]: Initialization Sequence Completed
Sep 03 13:13:55 VPNSERVER add-bridge.sh[1429523]: iptables: Bad rule (does a matching rule exist in that chain?).
Sep 03 13:13:55 VPNSERVER systemd[1]: openvpn-server@server.service: Control process exited, code=exited, status=1/FAILURE

[k829king]

sorry for noise was a typo on my part for reference

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https://www.server-world.info/en/note?os=Debian_12&p=openvpn&f=1

works fine, just managed to confuse the settings in add bridge and remove bridge.
Have separate issue with client and Whats My IP, will raise a separate ticket