You're conflating bug reports and error reporting, with telemetry and network access. Or even having network code in the app. Look at how android can ask, and

You're conflating bug reports and error reporting, with telemetry and network access. Or even having network code in the app. Look at how android can ask, and many OSS apps can ask, to send reports via approved side channels, like email. Or how people can report wishes for apps to issue trackers. Telemetry is more about usage patterns, and many don't want that. Also, for decades devs have designed perfectly usable software, without telemetry. It's just not even remotely required. Wanted maybe, but not required. And the whole bug reporting/user usage patterns thing is a red herring. For example, how is it possible that Audacity even exists, got stable, and used enough to be bought, without telemetry, if it is so vital??