You have complex software in your car regardless if it was purchased anytime in the last couple decades. The difference is whether you receive updates when it's brought in to a service center, or OTA. I personally prefer the former, even as someone whose job is simplified by the latter.
My car doesn't have critical bugs. And instead of making software more complicated, it should be made simple to reduce the chance of a critical bug to zero.
Has your car never had a recall, or are you simply unaware of any software recalls that have been done to it? Recalls are often done with software updates these days, so if you're not applying updates you're deliberately choosing not to apply safety fixes.
Last year there were five major recalls. One was a software fix for backup cameras not always working. Two were Tesla software issues. Two were non-Tesla hardware issues. I think if I avoid a Tesla, I don't have to worry about software updates for a while.
There were dozens of recalls in December alone. Every manufacturer has software bugs that need recalls, or fixes for hardware issues that involve software workarounds.