Chosen Solution
I first noticed this when I bought it a couple of days ago and I would say it’s much worse in person than on the video. I hope you can solve my issue!
I’m suspecting your keyboard was replaced as some point and the tech who did it didn’t do such a great job. The keyboard is held by plastic rivets which you need to take out and then use screws to replace them. The tech didn’t replace all of them (may not have not gotten them all out) which is why the keyboard is flexing. A good tech can repair this or you could do it as well.
