There is no native way of doing this, but I’m sure we can find a way.
Here’s a few ideas:
A) If you’re working with just a few basic values, you can use an equation field with IF statements.
B) If it’s somewhat more complex, you can use some JavaScript Pipe:
C) You can also the Rest API to lookup based on a single value, not exactly like Index and Match, you can see similar post here:
D) If you need a true Index and Match you can turn your a Google Spreadsheet into a standalone database and run a request against it in conjuction with a Pipe. This is complex.
I’ll make a video shortly to explain how to do this. It’s complex and will require advanced knowledge in Pipes and Google Sheets.