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I can't confirm that the description matches my issue but maybe it is the same. So here is my own description:
I use the same monitor 1440p, keyboard and mouse connected via HDMI to older MacBook Pro and dual boot Laptop (Ubuntu + Win10) with Hybrid graphics Intel 630HD and GeForce 1050Ti.
Since 22.04 the mouse movement on my external monitor feels laggy, jerky, while on the internal display it feels OK. I think on Ubuntu 20.04 there was not such an issue.
I feel that the mouse movement on the internal display is much smoother.
Otherwise GNOME Shell, YouTube, VLC don't seem to experience bad performance.
I use FireFox mostly. GNOME Shell animation feel slow for this system.