That is an interesting way of saying Apple is finally supporting an industry standard. By the way what is it with people pretending iMessage is the only messenger? There are many great cross platform options like signal and also some not so good options like WhatsApp. May just be Europe, but the last time I used SMS was in 2021. And I always have used iPhones.
Brave shields are based on ubo, but are patched directly into chromium so they should be immune against v3. Still going to stay on Firefox, but brave is a decent backup option. https://brave.com/blog/brave-shields-manifest-v3/