This actually looks to me like a species of tic which is still part of the arachnid family
I’m not sure, it has 6 legs and a pair of antennae. The carapace looks like it could have folded wings. It might be a kind of aphid or leaf bug. They bend their legs with higher arches than arachnids. I like these kind of mystery pictures that help us discuss arthropods. Thank you for helping!