Rigid resin is particularly challenging.
I’ve found placing the platform in the freezer until it hits the ambient temperature, about 1/2 an hour, and then washing the print in warm or hot water pops the print base right off.
Much easier than heating (which also works, but with more effort).
I don’t feel like testing a print’s tolerance for the freezing, heating cycle. I just separate the object from the base so that I can immediately start washing. That leaves just the base stuck to the platform for the freezer treatment. Also useful if your freezer is full and space scarce.