If I use the ryzen 7 5700g with the stock "amd cooler stealth" cooler, will it be ok or do I have to buy another cooler?
Thanks I don't like spikes in games,this worries me.Most likely OK.....unless you have high anxiety over temps for whatever reason. If you'd freak out at a certain temp, then do what you must to avoid it.
Experiment. Evaluate what you have and then react accordingly.