We have these little insects in our house, they look brown and round to the naked eye, they seem to be somewhat attracted to light since we found a cluster of ~6 on the wall next to a light, otherwise we find them one here and one there.
They are very very small, can barely tell what shape they are without magnification, they look almost like a dot.
Images below are taken with a loupe with 30x and 60x magnification but they are of squashed bugs so not the greatest photos, sorry. Will post pictures of live ones if I find more.
Location: San Jose, California, USA
Full quality images: https://drive.google.com/drive/u/0/folders/15FU-KEzqmXy7s69VfmA1UJoM_o0elWWz
EDIT: added some images of live insect on the wall, no magnification, 30x and 60x to the drive folder.