> The reason casino dice have such sharp edges is to get the to stop rolling faster with fewer tumbling. The more a die tumbles the more likely it will present any issues with it.

No, casino dice are flat-sided cubes because corner curvature could bias the result. Corner curvature is hard to measure. Cubical dice are easy to check for flatness and dimensions. Gambling regulators have specs for dice: 19mm, flat sides, translucent, balanced, with appropriate tolerances. Casinos usually use dice with serial numbers and logos. Casino dice come in a pack of 5 with all dice in the pack bearing the same serial, to detect substitutions.

Here's a manufacturer of casino dice, with their specs.[1]

[1] https://tcsjohnhuxley.com/product/certified-perfects-dice/