I actually just tried this on my own domain and although it enabled WebGPU it had another error, which was:
"Find an error initializing the WebGPU device Error: Cannot initialize runtime because of requested maxBufferSize exceeds limit. requested=1024MB, limit=256MB. This error may be caused by an older version of the browser (e.g. Chrome 112). You can try to upgrade your browser to Chrome 113 or later."
Also instead of just "Update Chrome to v113" the domain owner could sign up for an origin trial https://developer.chrome.com/origintrials/#/view_trial/11821...