Haaland needs to get used to the pressure. Wherever he goes, it is already clear that it will be a top club and there the pressure on him (in terms of expected results) will be constant. However, I support him in that he openly declares some problems - this will be a good signal for those who put pressure on him to stop their actions.
He did not play for big clubs and did not play in any international big tournament, Euro or World Cup. International tournaments can be one of biggest regret for Haaland and he might be another Giggs who did not achieve big thing with Wales.
Haaland is one of best strikers now and in future but I am very doubtful that he can bring Norway to World Cup or Euro. Even Norway can get in, they might not go to far in big tournaments.
I think that if he goes, for example, to Real Madrid and churns out 60-80 goals per season for 10 years, plus goals for the national team in qualifying tournaments, then everyone will be deeply indifferent to the fact that he comes from a small country and will not have opportunities to prove themselves in major competitions between national teams. He has every opportunity to make football history and I hope he does not miss them.