New listed is indeed being choosen as a short term investment by most people and I think this situation is being a culture in the crypto currency industry. I have seen many times even all of coin especially the coin being listed on the top exchange will get pump first for the first day they just listed.
It was the case earlier but now even after getting listed on a top exchange, hardly the price changes much unless there is some kind of pump and dump going on. Yes the total trading volume will increase which ultimately helps the coin but I don't think a lot changes with exchanges listing nowadays, as much as it used to impact some years ago.
you have to know that a good project that has a real function will not find a situation when its price dump a lot. It just a profit booking from some investor and will re-invest when a correction come.
If you are investing for the long term then it is indeed important to see the team, plan, and roadmap for the coin but if you are among those who just want to make some quick bucks from the listing then I think all that is not needed. I am not saying blindly invest in any coin but if an exchange is listing a particular coin then they have already done the due diligence.
A lot of people made a decent profit when Elon Musk pumped dogecoin despite everyone knowing nothing new happened in dogecoin as such but because all they cared about was profit, they just did it.