The StockROM Android user is already happy if he gets an update every few months.
As /e/ OS user I don’t need an update every few days. Also not every 14 days. It was enough for me to do an update once at the end of a month. So I am on the ‘stable’ level.
I only see the ‘stable’ build as a selling point for /e/ SMARTPHONE. By the way: The Samsung models of the e.foundation offered with preinstalled /e/ OS are attractive and fair in terms of price.