I think that there should not be any problems with this anywhere in the world except China, where they are especially sensitive to cryptocurrency and its trade. In other countries, one way or another, there should be no problems with the acquisition or sale. At the end of the day, there are always VPNs and other services that will help you bypass government prohibitive measures. (which usually just behaves idiotic) I think progress cannot be stopped and bitcoin, like other currencies, will take over the world within a couple of years and settle in the wallets of most sane people.

Actually even your a german you can buy cryptocurrency in exchangers just like for example binance, you can buy cryptocurrency using binance and you can just convert your fiat currency in your country and trade it into cryptocurrency. Another thing is that you can also ask some questions on the thread of Germany here in this forum and I'm pretty sure that there are people who will be able to answer your questions very well.

There are a lot of options, so you will find a lot of opportunities available, all you have to do is search for the best one.
How would you like to buy? Is it by bank transfer, debit cards or cash and do you want to get the currencies quickly or you are not interested in time.
Also, some do not like to reveal their identity, so using decentralized platforms like Localcryptos, Hodlhodl would be ideal for them.

Since you are an absolute newbie, I hope that you focus on safety, reliability and ignore the price and fees because they will improve as your experience increases.

I tried to search on Google most of the suggested site where you can buy BTC in Germany is bitcoin.de and Kraken.
Source from here https://www.reddit.com/r/Bitcoin/comments/elpvqr/best_way_to_buy_bitcoin_in_germany/

But try to ask someone on Germany local section from here https://bitcointalk.org/index.php?board=16.0/