LEGO Dark Stone Gray Tile 2 x 2 Round with Avengers Symbol with Bottom Stud Holder (14769 / 45984)

LEGO Dark Stone Gray Tile 2 x 2 Round with Avengers Symbol with Bottom Stud Holder has been used in at least 8 LEGO sets over the past 5 years, since it was first used in 2019. You can also find this part in at least 2 other colors. It has a design ID of 45984 which can usually be found molded into the bottom of the part.