.de actually has some tight requirements on it e.g. you need to include an "Impressum" on any hosted sites that states the name and address of a person responsible for the website
Every site targeting the German market has to do that, not just .de
And if you're a company you already have to publish a contact for legal matters anyway.
The only situation where an imprint doesn't already exist are scammers and personal sites, and personal sites don't need an imprint (if you make money with ads, it's not personal).
Why even support EU users though with all the GDPR overhead? Unless you are a multinational who doesnt care about GDPR overheads, best not to target the EU market isnt it?