Pin filters in filter groups

OK, I didn’t get what you were trying to do.
Why not have two groups:

Deal Owner is Me AND
Stage → Is final: True

OR

Deal Owner is Me AND
Stage → Is final: False

?

And have both groups as pinned filters.
You can then switch between showing

  • all deals you own (both filters active)
  • only Final deals you own (first filter group active)
  • only non-Final deals you own (second filter group active)
  • all deals (neither filter active)