For me though, I think Dex tokens are only profitable after when the Dex itself have become successful, the likes of uniswap, pancakeswap and a very few others are a clear example..
But then, in general, hype around dex tokens are not that much except, like i said before, when the dex itself have become super successful.
I will actually invest in dex tokens, but not all dex tokens, but a very selected few, right now, the only dex token I've invested in is Chainge (XCHNG) token, chainge is one Dex I believe have a very high chances of becoming extremely big and succeeding between this year and 2025, and with the coming bull season, XCHNG will definitely grow into a multi-billion dollar market cap coin from its current (around) $81 million dollar market cap.
So, XCHNG is the only Dex token I've invested in at the moment, will also look for good and prospective ones to invest in as well in the future.