I think a big contributor to the public's lack of confidence is just worse product quality. Pretty much every non-search Google product I've used in the last 5 years has had major issues. It's not that we didn't have bugs before, they were just handled better. Nowadays when things error out the most helpful message you'll get is, 'something went wrong' giving you no clear way to work around an issue or report a bug. My confidence has certainly dropped in general tech.