there are videos “explaining” everything, these days, i know
the problem is that they usually have no quality control in their production, anyone can “publish” anything, most have some kind of direct or indirect marketing purpose, and it’s hard to know what’s reliable … i know some people prefer learning from videos, and when you’re as old as i am, you can tell from reading people’s forum posts who has learned to trade from videos (let’s be polite and just say that they’re people who are not earning a living from trading - that discloses my bias politely enough, i hope!)
there isn’t enough to explain about the difference to fill a book, only a 1-page PDF, really!
the biggest difference is the pip-values/tick-values: with spot/CFD forex, many are $10 per pip, with forex futures many are $6.25 or $5 per tick
with futures, you can’t trade micro-lots (well, you can with the indices, not so much with forex - there’s a small-sized Euro one available, but the liquidity isn’t what one would want)
with futures, regulation and fund-protection are FAR better and safer
with futures, the broker really IS a broker and is on your side
those are the main differences
maybe (no promises!) one or two of these posts will help …