I think I have the same thing on my 2019 HC. I was actually coming on the forum to see if it was just me. At first I was thinking ping (bad gas and like what you said about light load) but i have heard pings before (other vehicles) and it wasn’t really that but I tried different gas anyway just to see.
It sounds like maybe some baby birds faintly squeaking here and there but isn't constant. By not constant I mean I hear it every time I drive but only here and there under load. It can be first thing in the morning, cold, hot, afternoon, highway, etc. I think most people wouldn’t notice it much but I do.