On top of the great points made by sibling comments the Apollo Lunar Modules landed propulsively from orbit with an additional party trick of having humans on board.

Also Blue Origin actually did propulsive sub-orbital landing from space to Earth before SpaceX, although admittedly from a lower altitude and velocity. Both came after the 1990s era Delta Clipper. Before that there were probably a lot of Apollo era test vehicles.

Each one got a bit higher and faster. This is the value SpaceX offers. They're doing the hard work of making things we know are possible also commercially viable.

Not orbital. Sub-orbital. Only their 1st stage rocket has landed, which mainly goes up, its nowhere near orbital velocity.

They plan to land the 2nd stage of starship, which will have reached orbital speeds. But that is a huge challenge that they have not attempted yet.

When did SpaceX ever do a powered landing from orbital flight?

The first ones that did, by the way, are the Soviets in the early 70s.

The retro-rockets on 1976 Viking lander in Mars don’t count? Of course that had a parachute to assist, but I think it was still going really fast.