I'll just share I am 5'6" and have a 30" inseam. MUCH of my riding is on Zwift. Measurable.
Indoor trainer bike: I modified a pair of spare arms from 175mm to 155mm (Drilling and tapping) on the basis of many videos on YT exploring this, and my own realization: I'm SHORT.
I could not be more pleased with the result. I found immediately less rocking butt movement on the seat, and they allowed me to spin in a circle.
For the same given heart rate I was up at least 5 watts average.
I have a gaggle if vintage Schwinns and others; I can't convert them, yet I wish I could. Works for me.
If you have a opportunity to experiment try it. The LH/RH taps are only $15 on Amazon.
Coop