Is this gaming PC configuration good?

I wanted to buy a gaming PC to play Minecraft, LoL, WoW, CS-GO, Valorant and other games with a lot of fps. I don't want to spend well over 700 euro. Is this pc good for it or not?

Waaarte wait wait, Intel UHD Graphics 750? So yes, GraKas are currently expensive, but you won't get very far with that.

And I recommend an operating system.

Put another Hunni on it or reduce it a little

Processor is good, RAM should be enough, you may need a little more. Graphics card is not included, only the integrated one and that is definitely not sufficient for it. You should buy a relatively new one from nvidia or AMD, especially if you want to play with a lot of fps.

Yes, ok graphics cards are currently more expensive than ever, but I would recommend you to get an older one if you still have money, because an Apu is not really fun.

All very well. But I would replace the graphics card or wait for the prices to drop. For MC you would need at least a 1050

Much gaming is not possible with this thing. Only the iGPU of the processor is installed and no dedicated graphics card.
You are best advised with the budget:

https://www.agando-shop.de/product_info.php/info/p102374