See title. Just a PSA, confirmed with a Samsung tech the following. Don't want you all to have a heart attack as I almost did.
Via Samsung Members app, the Clean device memory page on a model SM-G998U1 will show 12gb ram on Samsung 21 Ultra 5G with 512GB and 16gb ram.
If there is more information I can provide please let me know.
You should really be doing this from Device Care, hopefully it will show the right info there.
Settings | Battery and device care
Good to know that the other shows incorrect info though, good catch.