If only someone told them there's a product for this.
Although I've yet to use one to finish painting the wall down my basement stairs cause I'm worried I could still fall
This is the real answer. Where I work, all the painters and electricians have these on their truck.
ProVisionTools, Inc. PiViT LadderTool Extension Ladder, Leveling Tool, and Stable Platform for All Surfaces - DPVT https://www.amazon.com/dp/B000095SGF
I use one of these
Get a ladder tool and use a ladder leaning against the wall.
https://www.amazon.ca/dp/B000095SGF/ref=cm_sw_r_cp_apa_i_ZjDfFbBHTBA61
What about https://www.amazon.com/dp/B000095SGF