While a few iOS skins, like Pixel UI and One UI, have strategies for sharing stored WiFi networks with different devices, they are not perfect.
For one, the tool you are sharing to has to assist scanning a QR code to connect with a WiFi community. The generated QR code does include the community password in plaintext, however to get it, you want to experiment the QR code with a one-of-a-kind tool or screenshot it and experiment it locally, after which extract the text. And this needs to be achieved per-community. On Pixel UI 13, the password is immediately proven in plaintext beneathneath the QR code, however it is nonetheless a per-community process.
- UI tweaks.