Oh, you’re one of those people with hobbies. Fun fact: most motorcycles built after 2012 can use E10, but check your manual because some older bikes hate ethanol like a cat hates water. For lawnmowers and leaf blowers? The ethanol can absorb water and gum up your carburettor if you leave the fuel sitting for six months. Solution: either run the tank dry, or add a fuel stabilizer (like a little bottle of magic).
For the love of all that is green and grassy, don’t put E10 in your vintage chainsaw unless you want to learn the sad art of taking apart a carburettor on a Sunday. Just use the expensive “Premium” stuff for those moody machines.