Why recents folder isn't recent folder ?

Thank you, but this problem is determinated by the software Adobe (happen also with new video filmed by quicktime) or by a deprecated setting of macOS?

That's what I thought I said. The App has to write the metadata when the file is created. Or, Finder writes the metadata when you open the file.

I can't imagine Adobe will update their software to write the metadata as they depended on a decade old version of Java to make their apps run.

You can create your own Smart Folder that searches for create date or modified date, then sort the folder by that date, descending.

For a file to end up in the Recents Search Folder, it must have its kMDItemLastUsedDate metadata set.

Many programs do not set that metadata on creation, even some Apple programs.

If you open the file in the Finder, it is normally set.

That metadata is independent from the modification date and the creation date (or any other file system date).