I found a solution for the beginning.
My template folder is called🦎
My zettelkasten prefix is YYYYMMDDHHMM
So via search I can find the files without ZK prefix with:
path:- “
” - file: /(19[0-9]{2}|2[0-9]{3})(0[1-9]|1[012])([123]0|[012][1-9]|31)([01][0-9]|2[0-3])([0-5][0-9])
And by query in a note it would be
query
path:-"🦎" - file: /(19[0-9]{2}|2[0-9]{3})(0[1-9]|1[012])([123]0|[012][1-9]|31)([01][0-9]|2[0-3])([0-5][0-9])