I don't like the fact that a company can literally steal purchased product back from its users but I don't see how any company can realistically support a product for a long period of time, especially if it is a B2C perpetual license product

If Office 2019 got a zero day RCE just by opening a Word documents, the optics would be tremendously bad for Microsoft and they had to patch it, which cost money and time. We're on a day where zero day can be found using AI, and it's getting better at it every iterations. No, saying that it is EOL and "yeah not my problem" wouldn't fly at their scale, just see XP and how long they have to extend the support period

I'm not saying "but think of the multi-billion dollar company", I'm sure they can support it indefinitely, I'm just not sure if doing that is a good use of engineer's time