This is a very important issue for us men over 70.
Many toilets have high water, inadequate Water Depth From Rim, creating a health hazard for me and other men whose scrotums descend into the feces water.
See this study:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5890808/
"Contamination still was present 24 flushes post contamination. Clearance was modeled accurately by a two-stage exponential decay process. This study shows that toilet bowl water will remain contaminated many flushes after initial contamination, posing a risk of recurring environmental contamination and associated infection incidence."
Especially dangerous in public toilets!
Manufacturers, please start providing this parameter!