Vat meat is likely the long term future. IE lab grown but more efficient.

Vegonism will become more common. But is not going to be 100% or even close in time to have an effect. Ao likely ever as that effect is its biggest sell atm.

But lab grown meat can manage and use CO2 where as its hard to do so with live animals.

But arible farming is still a huge user of CO2 and really not being pushed to cha ge rapidly. Cost is still seen as more important then green energy use.