Further building on this, if you’re looking to exclude multiple tags, it will look similar to my above screenshot just with a - in front of each tag. Note though, that when doing this, in either case, “tag:” is not prefacing the tag.
eg: ,"second tag, “third (tag)”, “fourth:tag (and) (or)”, “fifth-tag”
To exclude, eg: , -“some-tag”, -“some-other-tag”