The 7z context menu can be configured to offer "extract here" or "extract to SOME folder" for a given SOME.zip or SOME.7z. If there is only one (root) folder in SOME.zip or SOME.7z, typically named SOME, I want "extract here". If there is more than one (root) folder or file I want "extract to SOME folder".
I never want to end up with SOME folder in the same directory as SOME.zip or SOME.7z consisting only of another extracted SOME folder. Obvious examples are SOME.tgz or SOME.tar.gz, I'd pick "extract here" to get SOME.tar -- could 7z automatically handle TGZ-style "extract here" vs. PKZIP-style "need SOME new subdirectory" for other formats?