Some cruiser style bikes will let you have a proper enough saddle height and still put both feet on the ground. Saddle height IMO is more critical as the seat tube angle get up near and into the road bike and TT bike geometries.
Something like this Lux 7D step-thru cruiser. Notice how the seat tube angle is so acute to the chain stay putting the BB well out in front. So one can ride it leisurely in a upright sitting position and still stay in the saddle and put your feet down when stopped.
https://www.trekbikes.com/us/en_US/b...olorCode=green
Road bikes, hybrids and many other bikes with a more vertical seat tube you can't or don't really want to have your seat that low. At least not if you want to ride a medium to fast speed on them.