If I look at German sources almonds and beef/pork have the following overall water demand for 1 kg product:

Almonds: 10000-15000 L/kg, beef: 15400 L/kg, pork needs apparently half of beef

That does not necessarily sound like “less than meat”. Granted almonds are among the most water consuming plants. Potatoes need only 290 L/kg.

https://berlin.nabu.de/umwelt-und-ressourcen/oekologisch-leben/essen-und-trinken/32632.html https://www.landwirtschaft.de/umwelt/natur/wasser/wasserfussabdruck-wie-viel-wasser-steckt-in-landwirtschaftlichen-produkten