Of course, no argument there. A lot of those people are missing some features, like proper group management. Before it was stickers, GIFs, video calls, etc. Some people always find something lacking, it's just an excuse. But for other people they are real concerns.

Signal's challenge is to build features that other apps already have but in a way that respects their users' privacy. They make their share of mistakes but I'm deeply grateful for what they do and try not to lose sight of the important stuff.

Is it though? I use a password manager. I recently found out that I had saved the PIN for my Signal account into it, but since it was never integrated with Signal I immediately changed it when I needed Signal later and I even forgot I had set up a PIN.

Sure, that doesn't mean there is/was no better way to make this change. To provide more options for users, etc.

I'm simply saying that the PIN prompt worked for me over the last months (I successfully memorized it), and now with the new UI it prompted me to fill it with Keepass for Android. (And that's how I found the old PIN in Keepass.)

I was literally agreeing to that an advanced opt-out would make sense, but I disagree that it's a priority for the initial release. I think the majority of Signal users will tolerate the discomfort.