I'm happy to report that this has been implemented in the current Royal TSX beta (18.104.22.168).
You'll find the option in the context menu of the "Search" field. It's called "Perform Fuzzy Searches".
You can get the current beta here: https://www.royalapps.com/go/kb-ts-mac-downloadbeta
Please let me know if it works as expected!
This is very exciting. I tested it and it works as expected. Thank you for implementing this!