People were protesting in spite of restrictions anyway. Lifting restrictions probably means more people have to go back into offices so you'd end up with fewer dumb protests like this.
I do find protests like this kind of funny. For one, meatless options like Impossible and Beyond burgers are pretty bad for you. They're higher in sodium, more highly processed, and have about the same amount of fat & saturated fat as compared to beef. They also play games with their analysis of sustainability and fail to disclose information about their supply chain sustainability (Beyond got a score of 0 by S&P Market Intelligence for transparency).
I also think the focus on animal agriculture is kind of dumb. Transportation, electricity generation, and manufacturing & industry are far greater producers of greenhouse gases. But they are huge systemic issues and you won't be able to get those sweet, sweet feelings of superiority you can get by trying to shame others for their diets. And you're just as bad as everyone else, because you're not giving up travel, convenient products from the global supply chain, or heating & AC in your house.
Should humans eat less beef? Yes. Is replacing it with just different McDonald's bullshit in any way sustainable or healthy? Not really.