There are some few exchanges that are very strict for listing tokens because they are very careful so they don't list a coin that would end up becoming a rug pulled. For your tokens to be listed you with need to do submit some documents so they would be aware of some certain things about the token. The team would have to negotiate on the amount to pay and the quantity of tokens that would be sent to the exchange. There are more things that would be required to be submitted by the token team so that the listing platform would know how to go about listing the token.
That is basically requiring time before anything else, sure not all the time but mostly time. If you want to get listed on Binance for example, you can't be a coin or a token that had its release just yesterday, they are not going to list you that quickly, it requires you to be there for a while and people need to see you are trusted before they could list you, plus if you have a top 20-30 ranking or so that would help as well because volume means money for them.
However, there are few special cases, like apecoin getting listed everywhere quickly, because that was from a team that they knew beforehand from the NFT collection, so it was a rare occasion.