No it fortunatly doesn’t. The games don’t need an USK (official german) rating. Steam seems to have it’s own rating system which seems to be enough

You can edit the accepted sizes under Settings > Quality

There is a good quote from Bjarne Stroustrup for that “There are only two kinds of languages: the ones people complain about and the ones nobody uses”. I think for hobby projects it’s the best to use languages that interest you

Also their blog talks about web3 stuff which is a red flag for me too