Either of those CPUs is more than enough for the 1650 Super. Choose whichever one results in a less expensive build overall including the motherboard and memory you'll need to accompany each choice. Considering the entry level nature of the graphics card, you can't really go wrong with either of them. Honestly, unless you plan to use the integrated graphics in the APU, there's not a lot of wisdom in waiting for the 3300x when the 9400f is more than enough for that GPU.
If you don't NEED to pull the trigger RIGHT now, then the 3300x might have some benefits over the 9400f, especially if you are desiring to overclock, but that too will demand the addition of some extra cost and hardware.
If you need to build now, and not "sometime" after May 21st, considering that supply of EVERYTHING in the world right now is poor and supply chains are semi-broken, then that probably isn't the greatest option.