We have seen some old equipment, but we have also seen HIMARS, Starstreak, NASAMS, Patriot, HARM, M777 (with Excalibur smart rounds), several types of drones, and bunch more stuff that is pretty much state of the art. Now there's 300 Bradleys and bunch of tanks on the way.
Yes, no F-35, which would be fun to watch, but I understand NATO has to keep some aces up its sleeves.
ETA: there were also some ... mysterious happenings. Like we still don't know exactly what blew up the airbase on Crimea. We don't know exactly what blew up the bridge. We don't know exactly what is hitting airbases many hundreds of kilometers behind the borders - some of them further from Ukraine than Moscow.