It was a shitty DDR4 C-die that couldn't even do 3600 CL18. The damage was caused as I tried removing the heatspreader it seems. The second image shows what I assume to be the damage. Next time I may try soaking the stick in pure alcohol for a few hours.
Fun fact: I also somehow broke my thumb fingernail while trying to remove the heatspreader. Not my day I guess, but I am testing some meshify c fan setups that I will share in a few days and I'm sure y'all will like what you will see.