Are there any suggestions for improvement?

I want to buy a new PC and want to ask if my configuration is good, I mainly want to play minecraft / server with it, is that okay or can I do something better? I configured it at dubaro.

Is good. Have the same processor and graphics card. Also from Dubaro.

Yes fits and if you later want to upgrade to a Ryzen 3000 then take the B450 Tomahawk Max.

Would strongly recommend a m2 ssd. Have a very good one from Intel with 512GB and it really makes a difference. With something like that you save in the wrong place in my opinion.

And again this dubious side that is mentioned.

X times already mentioned that one should not configure or order there.

Then still questions whether the config is OK?

Some just don't learn or gather that.

There are still (even today) better shops than Dubaro!

Arlt
Alternate
Caseking
Snogard
Mindfactory

and some others.

You can buy HIRN from a butcher, whether that helps is up to you.

And again this dubious side that is mentioned

I know that your answers are very often wrong, but what is the reason for this?

I think for gaming at medium to high settings, this is the best you can get for the money. Nevertheless, I advise you to build yourself!