A:AnswerFor any software you may be interested in, you will want to look at the publisher's website for the system requirements to make sure you it matches the specs for the settings you would like to run that software on. Updates can change those requirements which can impact the settings you can run it on or if you can run it all. As this unit does not have a dedicated GPU, it would depend on the type of video editing and content. Rendering times will take longer as well.
A:AnswerI have an earlier model from the year before this one and it does boot from a USB w/o issue, actually easier to do than with most modern laptops lately. I don't see any reason why you would not be able to do so based on this.
You will have to boot into the BIOS menu first and turn off safe boot and you might have to turn on legacy boot.