No, the F4-3600C18D-32GTZR is not compatible with the A320m-s2h motherboard.
No, the F4-3600C18D-32GTZR is not compatible with the A320m-s2h motherboard.
I understand from the QVL that the A320m-s2h isn't listed for the F4-3600C18D-32GTZR model. Still, should it function on your motherboard? It's fine if the MHz drops since you intend to upgrade later. For now, I hope it works. Also, your CPU is a Ryzen 5 3600 and you're thinking about upgrading it in the future.
You'll probably need to reduce the MHz to 3200 without sacrificing performance. Once you have another motherboard, you can raise it to 3600. Are you purchasing in the US? You might find better value with TEAMGROUP T-Force Delta RGB 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory (TF3D432G3600HC18JDC01).