I am pretty sure Wasabi was the first one on having that. In fact, it was something absurd to me but users loved it.
nostr:nprofile1qqsf80gvdu7vhtj88z9srtrvuzevqyc3fh9yczxkufcj6nlhzsz68scpp4mhxue69uhkummn9ekx7mqpzemhxue69uhhyetvv9ujumn0wd68ytnzv9hxgqg0waehxw309aek7mr0vdhjumnvmxmjyh has this feature, it's called "Discreet Mode" in the app.
I am pretty sure Wasabi was the first one on having that. In fact, it was something absurd to me but users loved it.