Exchanges that tend to do well have more chances of releasing a token that could also exceptionally well.
Of course if there are more people or clients using that particular exchange, you can expect them to trust that exchange and by extension trust the token that they will release as well. Tokens have some advantages for those who use it and the exchange so their success goes hand in hand
What you said is indeed correct. Recently I have noticed the coins listed from the top 2 Cex (Bitget and binance) particularly the former and most of them are doing exceptionally well. As of last month I talked about some of the memecoins I got from the cex and the profit made