What Bikeracer2020 was referring to is when you print your part as it is, that tab is standing up and the layers go across the width of the tab. If the tab was a separate part, it would be printed laying flat and the layers would go the length of the tab. It would then be chemically welded to the main apart (can't do that with PETG) and be stronger than the way it is now. I would still try with PETG first. PETG needs NO FAN, except on small parts such as that tab.. Try it first with no fan, temp 235C. If that tab does not come out well, try turning the fan on after you are about 4 or 5 layers above the main part.
Good luck!