In many (perhaps most?) countries there is not a distinction between commercial and residential toilets, I rarely see any here that aren't gravity flushed.

I remember the first time going into public toilets in the US (at LAX) and I went into a cubicle and thought I'd picked one with a broken toilet - the bowl was full of water!

Wikipedia provides a good introduction into the many kinds of toilet designs found around the world. The U.S.-american residential style with lots of water floating high ip in the bowl, as well as the high-pressure flushing system straight from the pipe are uncommon in most continents. There DIN-norms about „Flachspüler“ and „Tiefspüler“-style toilets e.g. in Germany.

My favourite: Japanese „tornado flush“ style toilets. Optional with built-in bidet or „washlet“. There seems to be zero aerosols and it flushes clean more consistently than others.

[0] https://en.wikipedia.org/wiki/Flush_toilet

[1] https://eu.toto.com/de/produkte/randlose-wcs