If someone were to write code to their software fixing bugs, how and why can that break other code/features if it’s not meant for that? A common example are Nvidia drivers “breaking” or Microsoft patching one feature but breaking many, many other features.
If code is meant to be hyper specific, how can it affect any other feature?
Nothing exists in a vacuum.
There is a break in a sewer line in town, so a crew goes out to fix it.
The crew’s only purpose is to fix sewer lines, but somehow, you’re still late for work.