According to its web site, eBay, New York Times, Square, American Airlines.

Specifically eBay Motors, which is a standalone app.

https://flutter.dev/showcase/ebay

I'm suspicious of those because it shows an ebay logo but then shows an app I've never heard of or used...is this the same for all the other logos? Where does NYT use flutter?

I don’t believe NYT has used Flutter for some years.

Flutter web publicly launched with a NYT prototype https://verygood.ventures/success-stories/new-york-times

I recognize that as the NYT Games (formerly NYT Crossword) app.

It has some very annoying non-native behavior, like bringing up the text selection/highlight menu in inappropriate places (in a word puzzle with no selectable text).

Or the non-native keyboard ... honestly made me stop using it altogether

Yeah that's really annoying too.

I've solved thousands of daily crossword puzzles in that app.

Listing eBay and NYT seems pretty misleading when it's actually eBay Motors and NYT Games and not their primary apps.

I can't tell if the same applies to Square or American Airlines but I would not be surprised.

The only one I often use is Immich. It's laggy and at times freezes completely for a second.

I don't think that's the developers fault though, I don't have that issue with any other android app.

I recently started Immich and also say the awful lag. But apparently this is due to a slow "album sync" running often on the main thread. Not the fault of flutter.

I don't know how syncing my 200 albums can be that slow but they are a big project to move it off of the main thread.

Hacki a nice frontent for havkernews