Video 1.
For as long as you have been playing, you play it pretty well. I watched it through 4 times with no sound, 2 times only watching your left hand, then 2 just watching your right, then twice with sound.
Your left hand seems to know where the cords are, it just lacks confidence it will land in the right places. So it still takes a long time to change to the next chord. What I do when learning songs with new chords and my left hand is doing what yours is doing is, without strumming, move through the chord pattern of the song. Start as slow as needed, make the first chord on 1 and the second cord on 2 then the third cord on 3 and so on.
You might have to start real slow to get a beat that you can change the chords evenly at. Once you can, go through the chords 10 times in a row. Do something else for a bit, then cycle through 10 times again. Continue till the chords can be switched at song speed. Of course it will take a while, but that is the beauty of being able to play well.
Your right hand is better at playing this song than your left. It should be ready by the time your right hand catches up.
Listening to it you can hear the gap of time, waiting for the next chord.
There is a lot going on at the same time in this song, just keep at it.
Video 2.
It appears to me your left hand is playing the same chord pattern just moved up and down the neck. Yet it still stumbles when landing in a new place. That is a problem more in the way your brain is thinking than ability. This one you lack confidence it will land in the correct place, not your hand.
As fast as you are learning, it will not be long before you are past all this.
Double post.... Sorry I did try to delete it.