Apple Watch 3 stuck on Apple logo

Mine is doing the same thing. It’s paired to my 11 pro. It was on the charger and when I went to take it off, it was frozen on the apple logo. I tried to reboot by pressing the digital crown and side button. When it comes back on, its still frozen on the apple logo

What were you trying to do when this occurred? If the Watch currently paired to an iPhone?

First step would be to reset the Watch. Press and hold the Digital Crown and power buttons together until the logo disappears and then reappears and release the buttons. The Watch should reboot.