I am not a fan of the "all in one" tool. If you need to do some light cutting I carry something like this.
https://sherrilltree.com/silky-ibuki-390-xl-teeth/
This type of saw is available in many sizes, from small folding saws you can fit in your pocket up to saws even larger than the one show in the link. The tooth design is the secret to the clean, fast and nearly effortless cut. The teeth are not something you can sharpen so they are throw away, but if you only cut clean wood a blade will last about a year of commercial use, a lifetime for the average homeowner. I have been using this type of saw since they were first introduced to the market back in the late 1980s. I was using a handsaw like the one in the link just a couple of weeks ago and a guy walked over to watch what I was doing and was in awe of how quickly and easily the saw was cutting through frozen hard wood limbs 3 to 4 inches in diameter. I am so accustomed to the saws capabilities I forget how good it is compared to other tools. They are simple and they always work.
If you have to clear multiple fallen trees across the road then a chainsaw is certainly going to be the fastest option. BUT, not only do you need the saw, you need everything that goes along with the saw. Gas, 2 cycle oil, bar oil, round file for sharpening cutting teeth, flat file for filing depth gauge, ear, eye and head protection, chainsaw safety pants or chaps are a good idea, a spare chain, wrenches to put the chain on or put the chain back on after you derail the chain. A backup plan for when you pinch the bar in the cut because you made the cut from the wrong side of the log. A backup plan for when you pull the chainsaw that has been sitting for 18 months without being run and it won't start. I carry a tool kit specific for my saw(s) that includes tools to be able to repair a broken pull cord, spare spark plug, sprocket and bar, muffler bolts, flanged bar nuts and other small problems that are typical.
Of all of the tools I have ever used, a chainsaw is one of the most difficult tools to learn how to operate with a high level of skill. I would compare it to shooting a gun. Almost anyone can go out and shoot at stationary targets and get some hits on target but it takes a high level of skill and practice to be truly proficient with a gun. A good tip to remember is: If you cannot visually identify a low kick chain from a pro chain then never grab your friends saw and start cutting with it. It could be, you thought you were jumping into the driver's seat of a Prius but you jumped into the driver's seat of a Dodge Challenger SRT and mashed the pedal to the floor.
I am not a fan of battery powered chainsaws due to limited power, charging batteries in the cold (it is usually cold here), battery shelf-life etc.
Axes are dangerous tools and have very limited use today. If you have a double bit axe the only place for it is hanging on the wall.
A shovel is a useful too and it always works. It also can be used as an aid in changing an LMTV tire.
I have no financial interest in the product or company in the link provided. I have a lifetime of experience in cutting wood.