MSI B350M Bazooka Motherboard, Ryzen 7 1700x, a coolermaster CPU air cooler (unsure of exact model), 16GB RAM at 2933, GTX 1070. At idle it is in the low 30's C, just browsing or playing a non demanding game like Slay The Spire, it is in the low 40's. I haven't checked temps after playing something for a while, but I've haven't had problems and the air coming out of it is always cool.
If having an extra exhaust is even slightly beneficial, I might do it, decent fans are pretty cheap.