I had a GE Profile dishwasher from the 2000's when I moved into my current home. It was abused by the previous owner and sold as not working. I completely rebuilt it and it worked great for a while until it's logic board died and replacements were hard or expensive to source.

But that thing had a powerful masticator. It would slurry up almost any foods. There was a very coarse filter about half the diameter of the drain hose but outside of that there was never anything left in the pan.

It would also monitor the turbidity to determine if it needed to flush the current pan water and add fresh water. It had a soap dispenser so it could re-add soap if needed. That thing was an incredible dishwasher. I still miss it.

For most of the article I felt like the author's learnings were pretty obvious, particularly in regards to the water jet direction and the minimum necessary dish arrangement. They didn't even get into detail about the heat and steam.

Then they mentioned the part about dishwashers having a "filter", and in that moment, my heart was instantly filled with shock, horror, anxiety, and finally, resignation.

I apparently live in a world where dishwashers have filters.

I'm afraid to look, but I'm pretty sure mine probably does as well, in fact I think I've seen it with my own eyes, yet somehow it never registered. Oh no.

I clean out our dishwasher filter every few months and I've never seen any residual food get caught by the filter. As long as you scape off the food bits it's fine. It'd getting to the point where I'm checking the filter less and less often.