There are many new or surprise teams that will play in the Champions League next season, but of these teams, Girona actually tends to be stronger financially than Newcastle before, but even so, we can't expect much from surprise teams who don't have the mentality and experience in the Champions League, just like you, I also suspect that teams like Girona, Bologna, Atlanta, Brest and even Stuttgart and Leipzig will not be able to do much in the Champions League next season even though they are currently improving their squad, the quality of the squad that a teams has team does not guarantee that the team can easily compete in the champions league so far and we can see how every season PSG continues to improve the quality of their team but instead continues to fail in the champions league, because the existence of competitive competition in the champions league has always required a team must the mentality, performance and also high consistency to be able to do it.
Been financially stronger than Newcastle does not make Girona better than them, although they are both strong teams, but Newcastle United's wealth couldn't help them secure the Champions League spot, it was Aston Villa this season.
There will actually be some surprises in the Champions League next season, we have new teams that did credibly well in their respective leagues to make it to the Champions League, and all of these teams come with good intentions to either win the Champions League or make a good effort to see if they can go above the group stage to either quarterfinals or semifinals which I think will be difficult for them because of how almost all teams are trying to improve their teams.