Starting my Stihl(s)...
Deep breath,
lift the saw to about chest height, then yank up with the left while *dropping* the saw with the right, for added speed. Starting with the saw stationary is harder for me.

About a year ago I bought me a MSA 160c which is a battery powered saw (now superseded I think) and OH! While pricey as hell & small it is competent and pleasant to work with. Doesn't stink. Starts as long as there is charge in the pack. No noise unless it is doing work. My most used saw now.
It starts with the pull of its trigger :-)