Since leaving the EU, additional regulations apply to EU citizens who wish to work in the UK. Attending events, concerts, business functions, tourism, visiting family and friends for stays of no longer than six months are not a problem. A visa is only required for stays of six months or longer; a passport valid until the end of the trip is sufficient.
Current regulations are subject to frequent changes, so it is important to obtain up-to-date information on the current situation.
Citizens from non-EU countries and from EU countries with a specific purpose for travelling must, however, apply for a visa for the United Kingdom in all cases.
Further information in German can be found, for example, here:
