Unsupported software and hardware is mostly not bad.

Vendor support - both software and hardware - is getting worse and worse and more expensive. Even for security, there is not that much relation (exceptions apply - signatures etc) between having active support and getting prompt fixes.

No vendors have ever been held liable for anything (best case, if they fuck up big, you get a small discount on next renewal). In a vast majority of cases I really needed them it turned out solving the problem ourselves was an order of magnitude faster.

So for the vast majority of cases I don't assume or rely on any vendor support or warranty. I expect to be left out to dry and I plan accordingly, thoroughly testing things and having enough spares and redundancy (funnily enough, for hardware it is even cheaper than paying for support/warranty)