In the picture there is 3 vessels. 1 rover, 1 satellite and 1 pod with a kerbal in it. They all look the same in the orbital view because they have the same icon, in KSP1 there was many icons this was very useful in organizing stuff.
Also if I clear the filters the entire list disappears but... everything still shows in the orbit view. I can see myself playing this for 30 days... 2 ships per day... and the orbital view is a big mess. The list does not recognize different types of stuff like rovers, space stations, probes, satellites, ... and I think this is important for any KSP player.
As for icon bar at the top (KSP1) vs the text list (KSP2)... Our brains can process that icon bar in a fraction of a second, what is on or off, is very simple and effective. The text list not as easy not even in alphabetical order and I think the list will increase with all the landers, stations, pods, .... just does not work for me.
btw: debris delete bug... many posts about it... skip