I’m a nail technician and I find soaking off the acrylic is so satisfying however, the thumb is always thicker and a bigger surface area so it is longer to take off. I find it also depends on the type of acrylic you use that makes the process easier or harder. For example most nail shops use cheap acrylic and liquid monomers which contain MMA those are damaging to the nail, but more expensive experienced technicians use expensive acrylic and liquid monomers which are better for the nail and also come of easier . MMA is extremely sticky when soaking off and non MMA products kind of crumble off.