Filter or narrow search by using /

I know you have a filter option after a search but this would be easier/quicker for the user, return results more quickly, and allow people to narrow results more specifically

examples:

By APP:

/sheets June Invoice

(only returns Google Sheets results)

/hubspot coffee landing page v2

(only returns Hubspot results)

By AUTHOR:

/@Peter June Invoice

(only returns results by an author/owner named Peter)

By COMBINATION:

/sheets @Peter June Invoice

(only returns Google Sheets results by an author/owner named Peter)

Anyone who uses Slack or Discord is familiar with this and it is starting to be used in many other apps as well.