Sync to me is an anti-feature that seems like a privacy nightmare, I especially don't want it to going to an advertising company. Similarly, the vast majority

Sync to me is an anti-feature that seems like a privacy nightmare, I especially don't want it to going to an advertising company. Similarly, the vast majority of new browser APIs are absolute garbage infested with security flaws. Most of them are abused almost exclusively by ad networks, including WASM, Audio Context, Beacon and more.