A very usual scenario is that the scammer pretends to be a technician doing some remote support and for example pretends to provide some refund. Then they pretend that they've mistakenly sent out e.g. 10x the amount and they ask for the difference back, claiming that their job is on the line.
Crypto would work, but since they target old and tech-illiterate people, the easiest way is usually to ask the victim to go to a store, buy gift cards and read out the codes.
Google kitboga (a known scam baiter) for the videos.