When the CBDC that is regulated by the government is no different from fiat, which continues to be haunted by monetary policies that burden the people, Crypto, especially BTC, will be considered more valuable in the eyes of the public.
Decentralized currencies will surely be considered best, but you know how people can be very foolish, why will people not trading leaving funds on centralized exchanges, so I will not go more deeper into this until many CBDCs have been created. But, the wise ones in the public will go for decentralized currencies like Bitcoin because CBDC are just like Fiat just like you implied, pegged with Fiat which is subjected to central devaluating control which is done by the government.
If you believe the market can bring a better economy, then crypto will be sexier than CBDC
What I will just have to comment about this is that we can not do without the two, decentralized currencies are deflationary, appropriative and act as speculative asset and store of value, for anyone that wants to make passive income, he/she can buy Bitcoin. Fiat and CBDC will remain, because if there is not inferior, there will be no superior. I like how I use Bitcoin as store of value while Fiat for spending.