Yes. That is true as of 2020. Since keeping only the 10% makes the supply 10 times greater, imagine what happens when they keep no reserves. This is when the “∞/21M” meme/joke became famous. The infinity symbol indicates the current money supply.

Indeed, since there's no limit in the currency inflation, you ought to be protected from a safe haven asset, otherwise you'll be pulled to poverty one way or another. Whether that asset is gold, Bitcoin, stocks etc. Although, I think that based on what's waiting us, Bitcoin is the best choice.