OH3.X & OH4.X Alternative Java serial provider

Quick question on this: If I’m on a plain 3.3.0 Release Build, still experiencing this problem just yesterday after reboot, being able to fix it with this workaround, does it mean my installation misses something? Doesn’t your comment above mean that the nrjavaserial-bug should be gone in OH 3.3.0 Release Build? Or am I misunderstanding something?