Nope. The 3 I listed do not filter any aircraft from being visible. They display everything the feeders submit to them.
I have a whole ADSB/VHF/L-Band feeder station on the roof of my garage and I feed the 3 I listed and ACARS data to airframes.io
I do feed flightaware...but only because they're up front about being for profit and the fact they give feeders a free pro account. But sadly they do filter since its one of the requirements when have access to data directly from FAA. The pro account is nice for setting up alerts for flights family or friends may be on just so you know the plane made it.
You know I was finding it interesting that most (but not all) of the planes at the military air show showed up on flightradar24. We got to watch half of it from the car on the drive up, as it's tradition, so the app let me be a much poorer quality announcer.