Since the graphic is showing ballooning land use for agriculture:

• "If the world adopted a plant-based diet, we would reduce global agricultural land use from 4 to 1 billion hectares".
• According to a very robust meta-analysis by Poore & Nemecek (2018) (full access via ResearchGate): "it takes 50 to 100 times as much land to produce a kilocalorie of beef or lamb versus plant-based alternatives." (quote by OurWorldInData)
• Also per Poore & Nemecek (quote by BBC News): "Producing a glass of dairy milk every day for a year requires 650 sq m (7,000 sq ft) of land, [...] more than 10 times as much as the same amount of oat milk"
• Animal agriculture's extensive land use is creating a "carbon opportunity cost" by not allowing reforestation, per Hayek et al. 2020.
  • Per the linked study: "Animal agriculture across all continents and income categories represents a profound trade-off [emphasis mine] when compared with potential GHG mitigation."

People who resort to "not every type of land can support plant-based agriculture" simply fail to realize the enormous difference in scale.

I could keep going, but I instead recommend reading the two linked studies and/or the OurWorldInData article which uses them among others as sources. I've never bothered to compile land use sources, so I apologize this isn't more thorough. Needless to say, however, the effects are catastrophic.