Yes. Really stupid use of memory.
It is intentional to hide the things they don’t want you to see.
I built my first PC in 1982, it had an 8bit Z-80 CPU running about 4 MHZ. (incredibly noisy) And it had the maximum RAM that the CPU would address, 64K. (yes, less than 1 megabyte.)
It ran NewDOS 80 and was pretty darn fast.
So why the complexity today? Why the bloat?
If the public knew why, many would not own a computer.,
And if you look at the task manager, there are DOZENS of programs running in the background and very few people even know what the are.