The 4.23 version of Daz Studio is in Public Beta but hasn't been officially released yet, so don't know about the differences. Can't imagine though that with a point release, that a major change to Content folders would have been made.  At least intentionally.

But as with all Renderosity products, often the best way is to look at the Read.me file from the product Zip. That'll have to artists name of course which can help, but often you can glean which folder it actually got installed into.

What I've taken to doing lately is that once the product elusive is found, I do a screen capture of where.