Sure it is still around. But nothing like the promise of being the future of Gaming and making traditional controllers obsolete. And Switch is just accelerometer, far from the pointer of wiimote and the motion capture Kinect was capable.
Even Nintendo that was bringing motion controls as core of the gaming experience didn't stick to it with Wii U.
It was the future which is now the present as many VR games feature it. Some PS4 games. 3rd party switch games include gyro aiming. Ninjala just came out and supports it. Old games like Doom and Duke Nukem include it. Sony in PS5 is including a built in-game with motion controls. They overhyped it sure but it is now very active in gaming today. Also, motion controls have kinda always been around and only grown more prevalent. NES had them. Genesis. SNES. N64. PS1. Dreamcast. They all had motion controllers you could buy. DC used it for Bass Fishing and oddly Soul Calibur. PS2 got eye toy. If anything motion controls have grown in the last 10+ years. They are practically a standard feature now.