Over the 45 years I spent in aviation, every touchdown I ever did (and there was a lot), except for one, was to grass. The one to a concrete taxiway generated a lot of sparks from the skid shoes, and comments from the groundies to avoid that in future.
However, comma, I did scare the snot out of myself once when doing autos to grass in a B206 that had pop-out floats. It dug in and rose up on the nose and raised the heart rate somewhat. Engineering inspection needed after that one, but all OK.