Depending on the type of fabric, you can fill up the drum pretty full and just leave about a fist wide gap at the top of the drum. This works for cotton and other heavier fabrics. Delicates and other lightweight items should be washed in smaller loads. Your manual should explain how to adjust the load size.
You could weigh a typical load of cotton and see how much laundry equals the full capacity of your FL. The large capacity FLs can hold between 8 and 10 kg of dry clothes (cotton).

Typically improper loading will result in the clothes not spinning out quite as well as they should. So if they seem wetter than normal then you probably did something wrong, if not then you probably don't need to change anything. As long as you use a little common sense then front loaders are pretty hard to load improperly by mistake.

When you watch a properly loaded FL during the wash cycle, as the drum turns you should see clothing "riding" up the side of the drum to about the 2:00 position, then falling into the bottom of the drum. That repeated fall into the pool of water at the bottom of the drum is the action that cleans the clothes.

In an overloaded FL, you might see a ball of clothing spinning around and around, but no falling from the top of the drum to the bottom of the drum.

I can load my FL very full, leaving just a fist-sized gap between the top of the pile of clothing and the top of the drum. I have to reach in and feel this; it's not really visible when I look into the drum. As long as I don't compact the clothes as I load them in, when they get wet they "compress" down and tumble correctly.

When doing a load of heavy items (jeans or towels, for example) I usually load the FL with more "breathing" space because those items don't compress down as much when they get wet. That leaves enough tumbling space.

CMC

So I searched this forum for how to load my washer.
My LG washer WM2016CW did not have loading instructions.

Someone told me to "fit as much as you can without stuffing it." So I have been doing that, leaving just a little room (the about "fist sized" room pretty much describes it).

Unfortunately, some clothes are not getting wet (and therefore not getting clean).

Any thoughts? I have tried a couple different kinds of loads
- general cottons (tshirt, undies...)
- towels

It seems that not everything gets wet unless i fill the drum only about half way. That is less clothes than my old top loader.

another newbie question - Am I suppose to see the water level through the window or does it stay below view? I can pause the washer and open it, and there is water there but it just comes up a couple of inches.