I think the nature of Transferring at Zürich Airport do I need to go through Passport Control or only Security? is clear from the Title (I wrote it).
Initially tagged by OP with air-travel I edited to, amongst other things, replace that tag with:
customs-and-immigration short-connections zrh
I did not add tag transit on the basis that transit is an inherent aspect of short connections (and others).
Another user has added transit.
Is the addition appropriate?
There are 112 Open posts tagged short-connections at present, of which 38 are also tagged transit.
Related: Combine “connection” and “transit” tags?
Related Do 'transit' and 'layover' mean the same thing?
Usage guide for short-connections (as last edited by me) is currently:
Where connections, typically between flights, leave little margin (such as close to Minimum Connection Times between terminals).
Usage guide for transit is currently:
Passing through a place briefly while travelling on the way to somewhere else.
The former has no synonyms, the latter has 'connection'.
