Animated Laptop Mockup 2 in 1 by MotionMediaGroup on CGguy
https://elements.envato.com/animated-laptop-mockup-2-in-1-QMK26G9
Free 
Pro Display XDR Presentation by MotionMediaGroup on CGguy
https://elements.envato.com/pro-display-xdr-presentation-9Y55F9W
Free 
Desktop Website Presentation 2 in 1 by MotionMediaGroup on CGguy
https://elements.envato.com/desktop-website-presentation-2-in-1-S4QDV2W
Free