Chain saws and nail guns are the two most dangerous power tools, sending their user to the emergency room.
For $20-25 dollars at your local hardware store there's a double edge, hand held pruning saw that is powered by hand and arm, pushing it back and forth.
The cutting edge with the large teeth is for pine, up to six inches. The other cutting edge with the small teeth is for oak, up to three inches. Cutting through oak takes about ten times longer than cutting pine.
N.H.chainsaw injuries ....
www.ncbi.nlm.nih.gov/pmc/articles/PMC10517730/ ..... medical photos showing chainsaw injury to someone's foot, close to their big toe ..... ouch! ....
Unless you have a lot of big cutting to do a hand saw will get it done, most of the time. Chain saws are for people who grew up with them and have a lot of experience and protective gear.