I have the Dewalt.  Was invested in the battery system, so it was not all that expensive tool only.  Works fine for me.  I think it leaks chain oil, but other than that it is great for a quick branch here and there.  Have also used it a bit more for clearing a fence line, worked fine for that too.

The one I have uses their flex volt batteries - so not sure if it is working at 60v or 20v.

For what its worth, also enjoy the leaf blower - I don’t blow leaves with it, but it is great to get dust off stuff in the shop when I am doing woodwork.

Exceptionally well.

I love my EGO leaf blower.  I wouldn't do an entire large yard with it, but it's great for blowing off the carport, driveway, and sidewalks, for blowing off the mower after a day of cutting, and for blowing out my gutters.

I've cut down a couple of 100' pine trees with a Black and Decker 40v 12"

One charge will cut down the tree but you won't cut it up without recharging or a spare battery .

https://www.homedepot.com/p/BLACK-DECKER-12-in-40-Volt-MAX-Lithium-Ion-Cordless-Chainsaw-with-2-0-Ah-Battery-and-Charger-Included-LCS1240/205646125

Heck I picked up a cheap Kobalt cordless chainsaw from Home Depot a few years back for shits and giggles... stupid thing runs all day doing hinge cuts and cleaning up shooting lanes around the blinds. Never tried cutting anything more than 4" thick with it, but haven't really needed to since we did the initial clearing with real saws.
For something light to strap onto the quad and run around trimming, can't beat it.
Zero complaints whatsoever...