It’s hard to give a definite answer. Nuances decide a lot. If the old coin has exhausted its potential, then, of course, it will lose to some new coins. But on the other hand, an old coin with good capitalization will always look preferable to some new one that has nothing.The advantage of new coins is that they will be provided with good marketing, which has a great influence on attracting new funds.Therefore, for me personally there is no clear answer to this question.
It is true that new coins are more interesting and have more interest, for example dogecoin and meme coins such as Shiba, PEPE and others that have just been created recently, Dogecoin has very slow price movements, in contrast to meme coins that have just been created has very good price movements to make a profit.
New coins are clearly very profitable as an investment because they usually always give different bonuses to old coins, so they are attractive, but many are scams and, in the end, many people avoid them.
If doge, shiba, pepe meme coins have been known for a long time, meme coins are rarely used as investments, so it's true that their movement is very slow.
But when mid-march they suddenly increased sharply due to the influence of bitcoin passing its final ATH. The great thing is that all meme coins increased sharply, and potential altcoins were so-so.