On what principle do RAM optimization programs work?

Question

RAM

For example, Wise Memory fills memory and then clears it. I opened and closed 100 Win calculators at once, the memory was freed up by 5-10%.

Answer 1

They work on the principle of marketing:
In fact, the management of memory allocation is the exclusive prerogative of the operating system , and no application programs are able to help it (except to interfere with it).