It's shitcoin vs shitcoin, but CZK is not burdened by a gargantuan eurozone debt load and setting the independent interest rate can fit the economy of 10 milion people better than what ECB tries to do between the needs of italy and germany.
Then there is the CBDC aspect of Euro. My guess is there won't be any CBDC czech crown and the switch to EUR will happen because of the CBDC digieuro, sold as an advantage that every 21st century citizen needs to have access to.