I never use Siri except when driving. But when driving, it's really wonderful to have, since my car does not have car play.
As a daily user, it's clear they have been actively messing with Siri still, particularly in the last year. But the changes seem to mostly make it worse. It now misses "hey siri" half the time for no apparent reason. I feel like they just don't know what they want to do with it.
I don't get why they just don't do it. There are jailbreaks, making it talk trash and so on, but is that the majority of users? I doubt it.