I was asked at the meeting about Video editing software.
I use Cyberlink Power Director.
There are some really good youtube tutorials to get you going.
They have gone over to subscription based software now so a monthly fee for as long as you want to use it.
They still sell it on a perpetual licence for about £100 ish but you don't get the updates with that. (I'll never go monthly)
https://www.cyberlink.com/products/powerdirector-video-editing-software/pricing_en_GB.html
I can't speak for any other software.
I was asked about free software but Google is your friend there.
For basic cutting and joining I have used free phone apps in the past which work quite well.
Hope this helps someone.
Jim