[5] In 2011, when originally budgeted, the cost of the construction of the new stadium was put at 35 billion Hungarian forints.

[6] On 26 June 2014, László Vigh said that the construction of the new stadium would cost 90-100 billion Hungarian forints.

The Hungarian architect György Skardelli, who was the designer of the nearby indoor arena, László Papp Budapest Sports Arena showed his original plans that did not include the demolition of the original stadium[8] On 19 September 2014, UEFA selected Budapest to host three group stage games and one round of 16 game at UEFA Euro 2020.

[14] However, by the time of construction two attempts at cutting unnecessary elements from the project scaled back the design to being football-focused because of the huge inflation of the construction budget and the desire to build a new athletics stadium in Budapest by Hungarian Prime Minister Viktor Orbán for a future Summer Olympics bid.

The idea to invite the Uruguay national football team came from Károly Jankovics who is the leader of the Hungarian community in Montevideo.

In the first three days only the members of the Supporters' Club of the Hungarian Football Federation could purchase the tickets.

[27] In 2020, due to COVID-19 pandemic in Europe, the 2020 UEFA Super Cup matches was moved from Estádio do Dragão, Porto, Portugal to Budapest, Hungary.