Patterns to match files for overwriting instead of merging

[vsenn]

Hi! Can you explain a bit how to use new sync Selector feature patterns to match files for overwriting instead of merging? I want to configure it like \/obsidian-icon-folder\/data.json in Overwrite patterns as it only remaining and unresolvable issue with sync conflicts I experience now.
So, the question is: if I want my icons from MacBook to migrate (overwrite everything) to iPhone, should I add this \/obsidian-icon-folder\/data.json on MacBook or iPhone or both?
Thanks!