If you pay attention to the Ukrainian conflict, you will see that the cyber-warfare is going strong (especially in the energy sector), and the internet is indeed a 'threatening' place. Just because you don't consider yourself an interesting target doesn't mean you won't be compromised.
Yes it's unfortunate that MS packages both bug fixes and 'features' in their update process. But as other comments have said, it is better then to migrate away from Windows to another OS which you can keep up to date.
There are many layers to a good defense, but for a regular consumer, simply keeping devices up to date is a low effort way of reducing attack surface area.
I wouldn't run any unpatched device with internet access, be it windows, linux, anything.
I recommend the book "This Is How They Tell Me the World Ends: The Cyberweapons" for a non-technical but interesting read about this topic.