I don't think my outlook on the big companies has changed much - I quit Facebook around a decade ago, and like you I quit Twitter after the Great Muskening began. I'd been increasingly disillusioned with Reddit over the last few years as well - this recent nonsense was simply the last straw.
What has changed is my determination to continue opting out, and to make a serious attempt at community-building in spaces like this one and Mastodon.