Item Drop Glitching

I have really noticed this glitch in the 1.16.2 first, but through this glitch all mined blocks are glichting through all blocks to the heightest block if there is any block over the mined block.

It happend to coal, cobblestone, diamonds and every other block drop that has an other block above it.

I wouldn't call it a serious bug, but it is a little bit annoying...