It's not a software bug. It's just overrated hardware.
Because it is a software bug in macOS 12. You have not provided any evidence that what you are experiencing is a hardware problem. You saying it is a hardware problem does make it fact, of which there is zero proof.
If this really were a software bug, then why does Windows and Android never have these issues?
You are not making any sense. Windows, Android and Apple run on different hardware, each having their own OS, drivers, etc. Not sure how you made the leap from it being a hardware issues because it does not happen on other systems.
There are a lot of cases where some people have issues while others don't. I have not experienced the storage calculation issue, others have. I have not experienced any issues related to the battery, other have. I have not experienced any lag issues, others have. None of which are hardware issues, they are all software issues.
Sorry to rain on everyone's parade, but there is nothing magical about Apple's hardware.
You come across as an angry, frustrated person. Other people deal with issues in an adult fashion without resorting to your tactics.