Why do you think you need a vpn? Are you trying to get access to your home network from outside or waste money on a commercial vpn provider who claims to “hide your ip address”?
I have a home office with 4 computers and employees generally download some 3rd party softwares for work. These softwares have adware and trojans which can easily penetrate my network.
The processes used to encode and decode transmitted data are quite different between OpenVPN and WireGuard…so no, it’s not “basically all the same software.”