If you had screen recording on by default you’d run out of disk space pretty quick.
MS just did what every other micromanagement company did and took screenshots every second or so.
According to that simile, Microsoft has became our boss, but for whatever reason, we have to pay Microsoft instead of Microsoft paying us.
If you mean Win-G, then clicking screen record, it shows an overlay which clearly indicates that the screen is being recorded. I don't think that you can hide that overlay.
there's a giant banner saying that screen recording is on, while there's nothing for recall? im not sure im following your question.
There are many screen recorders that do not show a "giant banner", and even if there weren't, it's ~200 LoC to implement an efficient screen recorder for Windows that's hidden.
You can install any app to do anything on Windows. The issue here is that this is built-in, so it will be everywhere, all the time.