The "what's on my screen" button does not appear in the Google Assistant, even when the feature is enabled in the settings.
ROM: LineageOS 16.0
Device: Moto X4
Is there any update on this?
Anyone able to replicate this issue?
Purging issues. Feel free to request reopening if it is still reproducible on the latest build.
I can still reproduce this issue on the September 1 release of OpenGApps. I'm using the nano version. My phone is a Moto X4, running LineageOS 17.1.
Provide some logs please. Install log and logcat from when you go to do "what's on my screen".
Here's a log. I have tried asking "what's on my screen" verbally, as well as just waiting for the button to appear. I have enabled all permissions to the Google app, and allowed it to use my screen context.
opengapps.log
I also have got issues on honor 5x the latest build of lineageOS 16. I had flashed nano version from 10th of sept. Disabling google app makes issue go away! In case of log i need to install matlog if that is required!
Honestly it doesn't work on my OnePlus 7T and I'm on stock ROM, so I think this isn't really an Open GApps problem.
I ask it "what's on my screen" and it acts like it doesn't have permission, but "use screen context" is already enabled in settings.

Nevermind, finally got it to work but I had to trigger Assistant repeatedly until it suggested the option itself. Perhaps that will work for you too?
@osm0sis Nope, that doesn't help. I've tried triggering the assistant repeatedly.
Okay, I've noticed another quirk. If I activate the assistant with my voice, the "what's on my screen" button appears. However, it does NOT appear, when activating the assistant by holding my home button.
opengapps_button.log
opengapps_voice.log
Yeah that's what I was saying before, I think a good part of this is just Google being Google and A/B tests and such.