Don't have a clue what 'Stifrf' is but 2 of my big Stihl's I don't run anymore are completely dried out, devoid of fuel and bar oil and they sit on the shelf.
My other saws I use infrequently, the 028 and a pair of Echo's sit for extended periods as well in my climate controlled shop and they are full of canned fuel (Echo-Red Armor 50-1) and so is my brush trimmer and when needed, they fire right up, no issue.
Hard to get non corn squeezed gas here so I run them on canned gas all the time. In fact, my over wintering 4 stroke power equipment is also on canned gas, I drain off the corn squeezed gas and replace it with Tru-Fuel canned gas. Tru-Fuel markets a non mix canned gas and I use that in them. They sit all winter in the unheated barn and fire right up in the spring. VP also markets a no mix canned gas as well.
Never had issue one with brittle diaphragms or rotted fuel lines which is typical when corn gas is in them. Ethanol gas is notorious for degrading rubber parts. My vintage motorcycles are the same. They have canned gas in the fuel tanks and in the carbs too and I keep the fuel tanks full on everything because a partially full fuel tank is a great place to get condensation from temperature differentials and water in the fuel spells issues.
Might cost a bit more for canned fuel versus E10 but the cost to repair down the road, negates the cost of canned gas by a bunch. How I do it, your mileage may differ.
New saws delivered to a dealer are shipped dry for the most part anyway and the selling dealer fuels them and starts them prior to displaying them. Least that is how it works at the dealership I work at part time. (Kubota-Echo-Cub dealer)'. The Kubota's come in with fuel in them but they are diesels, not gas motors.