Question about Raspberry Pi 4 8G Basic Kit incl. HDMI + 16GB SD

Normally, i would say Yes, take this:

Raspberry Pi Official Raspberry Pi 4 Case Fan (Heatsink)

But it is may not compatible with the Okdo-Case...
But there are some other cases on the market with cooling-fan build-in, just google it ;-)

And personaly i use my 3b (the one with the big heat-problem) 7x24 for streaming as a mediaserver and fileserver... no cooling needed, only a crown-job to reboot it all 2-3 days because of the ram that fills up quickly...
So i would say for "normal" usage as mine, it should be fine without fan...