Do rainfall showerheads have weaker pressure than standard heads?

It's a real tradeoff. Multiple r/HomeImprovement threads we read flag that air-infused 'rain' droplets feel softer and can lose heat on the way down, especially on wide heads at lower flow rates. Smaller-diameter heads (8–10 inches) and models marketed as 'high pressure' generally feel closer to a conventional spray. If your home has low static pressure, a 12-inch+ rain panel will exaggerate the problem.