de0u
de0u I believe if you check the settings for a specific Wi-Fi network on GrapheneOS you will find a "Share" button.
I have never found a way to use the scanned WiFi QR code with a second Pixel phone.
It's crazy: you can show and share a QR code from your Pixel phone, which you want to use as WLAN hotspot aka tethering, but there is no way for other devices to use it.
You can scan it, and then???
There is no link, no description, no share destination to select, to get it into the WiFi setup on the phone, which want to use the hotspot (get the scanned WiFi credentials into the other phone).
(I hope, you can understand what I mean. Maybe there is a way to do it, but I couldn't find it)