Exclude TAGS in Finder search

I'm aware of the option to click the + button and then pick the Tag option, etc.

What I'm trying to know/learn is how to do it by typing it at the top the same way I can type kind:image or name:vacation, etc

For tag, I can use tag:green and it will show me all files with that tag, but how can exclude it?

I tried tag -green. I tried tag:-green. No luck.

Let's say I have 200 files and all have the tag ABC and then 30 of those have the tag XYZ.

Now I just want to show the files that have the ABC tag, but exclude those 30 with the XYZ tag, meaning I will be shown 170 files.

I tired this, for example:

It actually showed me the files with green tag and excluded the ones with red, but as you can see, even after I hit ENTER, the "tag:red" wasn't converted to the same "format" as "tag:green". As much as this time worked, is this normal? Is this the right way to do it?

I also read that instead fo NOT I can use the minus sign (Narrow your search results on Mac - Apple Support). How would I use it in this particular scenario with tags?