Unable to disable Voice "OK Google" detection on latest Google app update (battery drain too)?

Is anyone else seeing this?
Not only am I unable to disable Voice Detection, i.e. "Ok Google", but it's my primary battery drain.
I was seeing this previously, and had replied in the similar battery thread, but this is after a full reset now.
While it's draining less battery than before (just the Google app alone, about 10-15% daily, instead of 30-40 before reset), this all started when the latest app update came down, about 3-4 days back now.

Additionally, I've triggered it twice, by accident, which can tend to be embarrassing, so I'm not taking my phone into any "quiet settings" now.

My "Ok Google" Voice Detection is completely disabled, including the "while driving" mode too now, but I can still activate it, easily.

I can probably completely disable the assistant, but I use it, so that's not a good solution. I also tried rollback, previously, which hosed my phone pretty bad, hence the reset.

Any ideas? Anyone else seeing this?