I use the Android version just now offline with wifi and mobile network off and I was able to create a wallet with it. I went to where seed phrase is I saw the seed phrase. It worked offline. I mean Blockstream Green.
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Just wanted to do quick follow-up regarding this issue.
I did same steps on another cell phone that had Blockstream Green pre-installed.
1. I turned off mobile data and wifi
2. Clucked on upper right button -> Setup a new wallet -> Get started -> Setup mobile wallet -> Entered PIN
3. After that I get "Creating wallet..." message for a minute
4. Finally I get "Error Connection failed"
Also version is 5.0.7.
So wallet definitely can't be produced while offline, at least with my phones and this version of software.
Unfortunately I couldn't make any screenshots because app doesn't allow making them.