v.87.1 not working on Redmi Note 2 with 7.9.14... Solarwarez save us! ;)
Arnova's Advanced 1,6 from here: https://www.celsoazevedo.com/files/android/google-camera/dev-arnova8G2/ and another one but I do not remember wich is - I'll check later.
I'm not 100% sure about OS, but I think that it works - my hands are not roc...
Confirmed: the .zip file attached at post #252 works fine with latest 9.8.15 dev xtrv from the Greek comunity. Before aplying that all cameras crashed when in selfie mode.
Good news, cross fingers... :D
Updated yesterday to 8.1, not rooted, no problems except that seems a little bit less smooth - but nothing serious. I'll stay without root for now, using DNS66 to cut most of the ads. Device is tb x 304L.