https://news.ycombinator.com/item?id=17659983 is a decent thread from a couple of days ago which should tell you a bit more about its current state, the experiences of people installing it and running it and has a bunch of comments from the author.

I suggest looking into WireGuard [1]. I found it easier to use than OpenVPN, and I think it will displace it as the de facto standard when it eventually gets merged into the Linux kernel. You'll have to use lower-level configuration tools to get started with it, which I am finding helpful to pursue the same goal of learning about networking more thoroughly.

[1]: https://news.ycombinator.com/item?id=17659983