I've Samsung galaxy A50. It has an internal RAM of 6GB. But, always only 1.6GB or 2.5GB or to max 2.9GB is only available as free. Then what's the use of this 6GB. How to solve this issue and how to make whole RAM space available?
System UI does not take up more than 1.5 GB. Did you check which apps are consuming your RAM using Device care? Pre baked apps like FB have a nasty habit of sitting idle in RAM. Disable apps you don't use and add device care widget to regualy clean your RAM. Low RAM will not mean performance will be an issue as UI automatically manages it. So unless its a performance issue really don't worry looking at numbers.
