Amazon already got serious several years ago, invested tons of money in their dev studios, bought huge licences, recruited talented people and still mostly failed to this day. I remember reading an article about Amazon's very hierarchical corporate structure that killed any attempt at the creativity needed to make a successful game but I can't seem to find it

I don't believe for a second that any of these big tech companies have a chance of making a significant dent in the videogame market, it's just too far from their own expertise