You can just add it and it should work fine. Might be a bit slower or wonky after you hit 16gb and start running off only one stick, but you're doing that now anyways haha

Search this sub there's this question twice a week. But the answer is almost always get a set of Kingston fury. I think fury beast are the ones that are clones of that ram.

Edit: https://www.amazon.com/16GB-3200MHz-DDR4-Beast-Black/dp/B097K2WBL3/ref=mp_s_a_1_4?crid=3JN9PEV2UGGQ&keywords=kingston+fury&qid=1687296333&sprefix=kingston+fury%2Caps%2C128&sr=8-4

Or RGB https://www.amazon.com/Kingston-3200MHz-Desktop-KF432C16BBAK2-16/dp/B097HNYMYR/ref=mp_s_a_1_5?crid=3JN9PEV2UGGQ&keywords=kingston+fury&qid=1687296333&sprefix=kingston+fury%2Caps%2C128&sr=8-5

I'd personally go with 32gb if you're upgrading anyways, also not sure what speed of ram yours came with but those are the fairly generic ones.