Generally I agree with everyone else, Linux Mint is great.
However, if you really want to not worry at all, you could just buy a laptop from e.g. Tuxedo or System76. They come with Linux preinstalled (I think in the case of Tuxedo at least, you even have a choice of which Linux Distro?), and are guaranteed to have no hardware “difficulties” with Linux, i.e. even if you put another distro on it, you won’t encounter driver issues.
(Those have become very rare anyways, but do put a damper on the “Firsttime Linux Experience” if you do encounter them…)
I recommend using Usenet for German stuff, all the private trackers I have tried in the past were… seedy.
Yes, you need to pay for access to the Usenet, but it’s worth it for German language audio IMO.
Check out scenenzbs.com, no need to pay to search there. Check if everything you need is available, though likely, it will be.
I have not had a failed download yet.