This is not directed towards any particular person or product. I wanted to give yo a bit of background behind those terms. I have worked in the computer industry for 17 years and electronics for decades.
Many people hear the terms Not Supported or End of Support and think that the product will instantly stop working; which can be far from the truth. What those statements mean is that company (usually) stops all efforts to update or fix problems with the item after that date. The product may still work long thereafter. What those statements also may mean is that "If you break it, you now own both halves". Even if there are issues, some third party may have a fix. There have been VOIP adapters that stopped working and someone has hacked a fix to keep them going.
I personally have a couple of Windows 7 boxes which Microsoft long ago decided not to update, yet I still can get some updates from Microsoft through a patch I installed. Still, they will stop at some point, but long after Microsoft decided to no longer support them.