It's not just silly stuff. There is stuff such as Apple Music which opens on the foreground every time I put on Bluetooth headphones and the two ways to stop it are either modify some internal system settings via shell or use another app which closes Apple Music immediately after it opens.
Another issue is the fact that whenever I turn on my headphones, if they were connected before laptop went to sleep, it will automatically wake up. Imagine if it was in your backpack and started working there.
At one point I had a list of Mac software issues but then I threw it away before I was forced using it again. As another commenter said, there is a threshold of small issues which once they add up is overstepped and then you search and find better options.