It is actually faster and easier just to use plurals:
files "Zoom.exe" of folders "Zoom\bin" of ( (folders "AppData\Roaming" of folders of folders "C:\Users"); (program files x32 folders; program files x64 folders) )
so there is 3 different ways to write the relevance, one for computers that have an older version installed, or for those that don’t have it installed, or for both.
If you are installing the system wide zoom, then you might only want to check for it in that location, since 1 user could have a newer version on the same system in which the system wide version is older. You could read the zoom version from the file or the registry. I generally prefer the registry but I’ll stick with the file as @MMosley has demoed.
exists versions whose(it < "x.x.x") of files "Zoom.exe" of folders "Zoom\bin" of (program files x32 folders; program files x64 folders)