Finding notifications via Quick Switcher

I would like to be able to search for notifications using the Quick Switcher.   You could enter a special key (say % or $ or ^ or &) and all the locations with notification would be shown.

For example, you could generate narrower searches by combining symbols.

Servers with notifications could, for example, be found with *%  or the other way round %*

Chat channels with notifications could be found with #% or %#

Voice channels with notifications could be found with !% or %!

Direct Messages with notifications could be found with @% or %@

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Philip