From what I remember, next-auth is kind of dead and Better Auth developers have been maintaining security of next-auth for some time now. (or was it Vercel that did the maintaining?)

Better Auth is the go-to solution for many people using Nextjs, so it makes sense that Vercel puts some effort in maintaining it.

I have never had issues running Nextjs in regular containers, it is just a good open source solution, I don't see why it would be any different with Better Auth.