By Veronika Bondarenko The alternative meat burger has been in a protracted test period since 2021. The short answer is “no one knows.” The veggie-based burger, which has been available at global franchises for years but would be a first for McDonald’s (MCD) – Get McDonald’s Corporation Report in the U.S., has been riddled with questions ever since the chain first started hinting at the McPlant in 2019. By November 2021, the Golden Arches began testing the McPlant in a few select restaurants and rolled out the trial to 600 locations by 2022. Despite the fact that McDonald’s was already years b…