is it not chromium, because Chromium browser, Edge, Brave, Opera, Vivaldi, Yandex, Samsung etc... (and Google Chrome) all use the open source chromium engine

only safari and firefox did not implement it according to: https://caniuse.com/?search=web%20bluetooth

which might be great because you have the choice...

and you can use open source chromium or brave (like the jvm to run cross platform java) to run web apps seemlessly that need web bluetooth or such but use safari or firefox for personal use if you find them more secure

I mean using chromium engine as the running environment where chromium only ever runs special trusted web domains and never goes to other "malicious" web domains that may fuck up iOS as Apple claims would be still a secure choice

like you will not download spyware from Apple Store because you are an adult not because Apple can protect you there